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Subhotosh Khan
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Subhotosh Khan
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Join Date
06-18-2007
Last Activity
Today
08:39 PM
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Today,
03:09 PM
Subhotosh Khan
replied to a thread
How to calculate Umbrella type generator
in
Arithmetic
Hmm.. are you the owner of Uttarakhand Jal Vidyut Nigam Limited (UJVNL).?
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5 replies | 49 view(s)
Today,
11:34 AM
Subhotosh Khan
replied to a thread
How to add this number x+y+z 3x+2y+3z where it is used
in
Arithmetic
As posted, I cannot decipher the problem. Please post the complete original problem.
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3 replies | 31 view(s)
Yesterday,
05:21 PM
Subhotosh Khan
replied to a thread
Area of a sector of a circle (shaded portion)
in
Calculus
Now you need to subtract the area of the triangle to calculate the "pink" area.
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6 replies | 71 view(s)
Yesterday,
08:17 AM
Subhotosh Khan
replied to a thread
Trigonometry question: prove that 1/sin(10°) = -2 + 8cos2(10°)
in
Geometry and Trig
Calculator? .... just kidding What are your thoughts? Can you express sin(x) in terms of cos(x)?
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2 replies | 53 view(s)
09-16-2018,
03:37 PM
Subhotosh Khan
replied to a thread
Right Triangle or not? How to put in an eqn? vertices A(4, 3), B(-6, 2), C(-5, 7)
in
Intermediate/Advanced Algebra
Calculate the lengths of AB, BC and CA - then use Pythagoras's theorem to check for right angle. What is the total score of the student now? ...
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3 replies | 77 view(s)
09-15-2018,
04:01 PM
Subhotosh Khan
replied to a thread
Is the number of diameter divided by the number of chords is a fixed number?
in
Geometry and Trig
By that - are you referring to the LENGTH of the diameter? By that - are you referring to the LENGTH of the chord?
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7 replies | 121 view(s)
09-15-2018,
01:35 PM
Subhotosh Khan
replied to a thread
what's cyclically ordered set? Are solid bodies have cyclically ordered set of point?
in
Geometry and Trig
Polygons are 2-D structure. Solid bodies are 3-D structure.
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5 replies | 88 view(s)
09-15-2018,
01:30 PM
Subhotosh Khan
replied to a thread
what's cyclically ordered set? Are solid bodies have cyclically ordered set of point?
in
Geometry and Trig
A closed polygon should have cyclic order by definition of being closed.
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5 replies | 88 view(s)
09-15-2018,
01:27 PM
Subhotosh Khan
replied to a thread
how can I do this on Casio fx-85GT plus?
in
Calculus
Take "log" of both sides and continue. If you are still stuck, please reply back with your work from my suggestion.
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6 replies | 113 view(s)
09-15-2018,
10:06 AM
Subhotosh Khan
replied to a thread
find x and y so x^2 + y^2 = 2 would be correct
in
Intermediate/Advanced Algebra
There are infinite possible solution for this equation! Did you post the complete problem?
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5 replies | 131 view(s)
09-15-2018,
09:50 AM
Subhotosh Khan
replied to a thread
Determine Elementary Fcn for sum[1,infty](n a_n x^{n-1}) - sum[1,infty](a_n x^n) = 0
in
Differential Equations
If I were to do this problem, I would write out the first few terms (~4) for each series and observe if any grouping or elimination is possible.
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2 replies | 128 view(s)
09-15-2018,
09:15 AM
Subhotosh Khan
replied to a thread
Solving equations with fractions: 2x/(x+6) + 1/(x-1) = 2
in
Intermediate/Advanced Algebra
From your attempt I am assuming the actual equation is: 2x/(x+6) + 1/(x-1) = 2..................... those parentheses are super important to make...
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2 replies | 65 view(s)
09-14-2018,
11:39 AM
Subhotosh Khan
replied to a thread
Find the equation of the line through (3,7); parallel to 3x-y=1.
in
Beginning Algebra
Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll start with the definitions. ...
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4 replies | 102 view(s)
09-12-2018,
04:19 AM
Subhotosh Khan
replied to a thread
How to determine which of 0.470, 0.47, and 0.4 is the largest?
in
Arithmetic
One of the ways one can determine - which number is bigger between two - is to use subtraction. Can you subtract decimal numbers?
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21 replies | 427 view(s)
09-11-2018,
12:03 PM
Subhotosh Khan
replied to a thread
Dont know where to start: 15.2/sinsin51 = y/sinsin67 = z/sinsin62
in
Intermediate/Advanced Algebra
This is fairly simple ratio problem - where are you stuck? Please share your work/thoughts with us - so that we know where to start.
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2 replies | 105 view(s)
09-10-2018,
09:15 AM
Subhotosh Khan
replied to a thread
Which Interest is used in bank Compound interest or simple interest?
in
Arithmetic
How come you did not answer the question the tutor asked you in: ...
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2 replies | 94 view(s)
09-09-2018,
06:18 PM
Subhotosh Khan
replied to a thread
(Graph Theory) Minimum possible number of friendships
in
Advanced Math
How many - total - friend requests were produced?
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1 replies | 46 view(s)
09-08-2018,
12:09 PM
Subhotosh Khan
replied to a thread
Analysis of difference of products: If I budget 5 resources, w/ rate of $100/unit...
in
Calculus
That will be dictated by your production system - every system will have different combination of multipliers (weighting factors). Your...
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10 replies | 344 view(s)
09-07-2018,
07:20 PM
Subhotosh Khan
replied to a thread
Graphing Piecewise Function: f ( x ) = {3 if x ≤ -2 {-x + 1 if -2 < x ≤ 1 {1 if x > 1
in
Intermediate/Advanced Algebra
Can you graph: f(x) = 3
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1 replies | 94 view(s)
09-07-2018,
01:37 PM
Subhotosh Khan
replied to a thread
What will be the graph if x=t and x=t˛?
in
Geometry and Trig
Yes you are correct on both counts - as far as "what you have posted".
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6 replies | 243 view(s)
09-07-2018,
11:22 AM
Subhotosh Khan
replied to a thread
Why complex = real in this case
in
Intermediate/Advanced Algebra
Complex number - according to my definition - can be expressed as "a + i * b" , where: i = sqrt and a = any real number (no imaginary part)...
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7 replies | 194 view(s)
09-06-2018,
07:36 AM
Subhotosh Khan
started a thread
Colonial Cricket Conversation
in
Math Odds & Ends
That was a "sixer" for sure!! Denis, I got another ally here!!!
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2 replies | 66 view(s)
09-06-2018,
07:17 AM
Subhotosh Khan
replied to a thread
Zero Discussion
in
Math Odds & Ends
However: An "even" number with "even" exponent will result in "even" number. 2^0 = 1 ........ Now what??
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24 replies | 663 view(s)
09-05-2018,
05:40 PM
Subhotosh Khan
replied to a thread
I have no idea where to start. Please Help! (simplify 2-3 + 3-2, etc)
in
Intermediate/Advanced Algebra
Are you sure that you have no idea regarding the solution of (2)?
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7 replies | 229 view(s)
09-05-2018,
09:55 AM
Subhotosh Khan
started a thread
Zero Discussion
in
Math Odds & Ends
In some cases, zero is considered to be even. In other cases, it is counted as neither odd nor even. Did you ask Google?
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24 replies | 663 view(s)
09-04-2018,
08:07 PM
Subhotosh Khan
replied to a thread
Sets: Prove (a) (A − AB) ∪ B = A ∪ B; (b) (A ∪ B) − AB = AB^c ∪ A^cB
in
Probability / Statistics
Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll start with the definitions. ...
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4 replies | 117 view(s)
09-03-2018,
04:09 PM
Subhotosh Khan
replied to a thread
something is not right here: Simplify [(8 x^4 y^{-2})/(4 x^7)]^{-3}
in
Intermediate/Advanced Algebra
2^(-3) = 1/8
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12 replies | 294 view(s)
09-03-2018,
07:51 AM
Subhotosh Khan
replied to a thread
One over?? What does 'one over' actually mean?
in
Geometry and Trig
Do you know the relationship between "frequency" and "period" - in the context of oscillation?
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5 replies | 200 view(s)
09-02-2018,
09:44 PM
Subhotosh Khan
replied to a thread
7th GR. Beginning Algebra pre-work: x for which the product of [x] and x equals 39?
in
Beginning Algebra
What are your thoughts? What is a "square" number that is nearest to 39? Now think a bit......
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2 replies | 139 view(s)
09-01-2018,
09:29 PM
Subhotosh Khan
replied to a thread
calculus 3: find y so distance between (6, -5) and (3, y) is 12
in
Calculus
This is not a calculus problem. Distance between two points with coordinates (x1,y1) & (x2,y2) is: D = 2 - x1)^2 + (y2 - y1)^2]^(1/2) ...
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7 replies | 248 view(s)
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About Subhotosh Khan
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“... mathematics is only the art of saying the same thing in different words” - B. Russell
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Last Activity
Today
08:39 PM
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06-18-2007
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