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Indranil
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Indranil
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Join Date
02-22-2018
Last Activity
06-18-2018
05:27 AM
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06-18-2018,
05:27 AM
Indranil
replied to a thread
Which one is bigger 1 g or 1.6605 X 10⁻²⁴ g ?
in
Beginning Algebra
1 is larger.
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5 replies | 188 view(s)
06-16-2018,
08:22 PM
Indranil
replied to a thread
Which one is bigger 1 g or 1.6605 X 10⁻²⁴ g ?
in
Beginning Algebra
1.6605e-24
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5 replies | 188 view(s)
06-16-2018,
11:47 AM
Indranil
started a thread
Which one is bigger 1 g or 1.6605 X 10⁻²⁴ g ?
in
Beginning Algebra
Which one is bigger 1 g or 1.6605 X 10⁻²⁴ g? Could you explain, please?
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5 replies | 188 view(s)
06-16-2018,
11:42 AM
Indranil
replied to a thread
How to calculate B = root A^2 + A^2 + 2AA Cos theta?
in
Geometry and Trig
I got it now. Thank you all for your kind efforts. Thanks a lot.
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20 replies | 613 view(s)
06-16-2018,
08:35 AM
Indranil
replied to a thread
How to calculate B = root A^2 + A^2 + 2AA Cos theta?
in
Geometry and Trig
As we know sin(2α) = 2 sin(α)cos(α) But could you please explain how you find sin(θ) = 2 sin(θ/2) cos(θ/2) ?
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20 replies | 613 view(s)
06-14-2018,
07:52 AM
Indranil
replied to a thread
How to calculate B = root A^2 + A^2 + 2AA Cos theta?
in
Geometry and Trig
Could you simplify the second part of it, please? tanα = A sinθ/A + A cosθ = 2A (sin θ/2) (cos θ/2) / (2A cos² θ/2) = tan θ/2or α = θ/2
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20 replies | 613 view(s)
06-12-2018,
08:31 PM
Indranil
replied to a thread
How to calculate B = root A^2 + A^2 + 2AA Cos theta?
in
Geometry and Trig
Yes, I got it now. (1 + cosθ) and (cosθ + 1) is the same thing? Could you tell me, please?
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20 replies | 613 view(s)
06-12-2018,
01:32 PM
Indranil
replied to a thread
How to calculate B = root A^2 + A^2 + 2AA Cos theta?
in
Geometry and Trig
I checked your first thread. But I don't understand how you put the value '( 2cos² (θ⁄2) ) in the place of (1+cos (θ) ). Still, I don't understand...
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20 replies | 613 view(s)
06-12-2018,
11:09 AM
Indranil
replied to a thread
How to calculate B = root A^2 + A^2 + 2AA Cos theta?
in
Geometry and Trig
Yes, I checked it. could you tell me please why did you put 2cos^2(theta/2) in the place of B= root 2A^2(1+cos(theta)?
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20 replies | 613 view(s)
06-12-2018,
12:48 AM
Indranil
replied to a thread
How to calculate B = root A^2 + A^2 + 2AA Cos theta?
in
Geometry and Trig
cos(2α)=2cos2(α)−1⟹cos(2α)+1=2cos2(α) 1. why cos(2alfa) = 2cos^2(alfa)? as I have learned cos 2α = cos2 α − sin2 α , cos 2α = 1− 2 sin2 α,...
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20 replies | 613 view(s)
06-11-2018,
12:41 PM
Indranil
replied to a thread
How to calculate B = root A^2 + A^2 + 2AA Cos theta?
in
Geometry and Trig
No sir, Could you discuss it or give links or video links so that I can understand?
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20 replies | 613 view(s)
06-11-2018,
10:52 AM
Indranil
replied to a thread
How to calculate B = root A^2 + A^2 + 2AA Cos theta?
in
Geometry and Trig
Next, use a form of the double angle identity for cosine cos(2α)=2cos2(α)−1⟹cos(2α)+1=2cos2(α)cos(2α)=2cos2(α)−1⟹cos(2α)+1=2cos2(α) I don't...
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20 replies | 613 view(s)
06-11-2018,
02:44 AM
Indranil
started a thread
How to calculate B = root A^2 + A^2 + 2AA Cos theta?
in
Geometry and Trig
How to calculate B = root A^2 + A^2 + 2AA Cos theta? The steps are below B = root A^2 + A^2 + 2AA Cos theta = first step, root 2A^2 (1 + cos...
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20 replies | 613 view(s)
05-26-2018,
11:54 AM
Indranil
replied to a thread
Rounding off to correct significant figure: If we add 3.46 and 2.3 we get 5.76....
in
Beginning Algebra
Thank you for your kind efforts. Thanks a lot.
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16 replies | 787 view(s)
05-26-2018,
06:03 AM
Indranil
replied to a thread
Rounding off to correct significant figure: If we add 3.46 and 2.3 we get 5.76....
in
Beginning Algebra
If I round it off to the nearest ten, I get 1,910. But how can I get 191?
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16 replies | 787 view(s)
05-25-2018,
01:39 PM
Indranil
replied to a thread
Rounding off to correct significant figure: If we add 3.46 and 2.3 we get 5.76....
in
Beginning Algebra
If I round off 4567, it should be 4570.
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16 replies | 787 view(s)
05-24-2018,
09:40 PM
Indranil
replied to a thread
Rounding off to correct significant figure: If we add 3.46 and 2.3 we get 5.76....
in
Beginning Algebra
1. Why 'the ones and tenths places can't be trusted'? 2. Where did you get 1900 from ' drop the digits to the right of it (1900)'? 3. Why is it...
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16 replies | 787 view(s)
05-24-2018,
01:55 PM
Indranil
replied to a thread
Rounding off to correct significant figure: If we add 3.46 and 2.3 we get 5.76....
in
Beginning Algebra
Simplify, rounding 1247 + 134.4 + 450 + 78 to the appropriate number of significant digits. Looking at each of the numbers they've given me, I see...
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16 replies | 787 view(s)
05-24-2018,
08:05 AM
Indranil
replied to a thread
Rounding off to correct significant figure: If we add 3.46 and 2.3 we get 5.76....
in
Beginning Algebra
If we add 2.3 X 10^4 + 1.6 X 10^3 = 2.3 X 10^4 + .16 X 10^4 = 2.46 X 10^4. If I round it off, then what will be the answer and why?
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16 replies | 787 view(s)
05-24-2018,
02:17 AM
Indranil
replied to a thread
Rounding off to correct significant figure: If we add 3.46 and 2.3 we get 5.76....
in
Beginning Algebra
What do you mean by 'both have known digits in the thousandths place.'? Kindly explain, please
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16 replies | 787 view(s)
05-23-2018,
11:21 AM
Indranil
started a thread
Rounding off to correct significant figure: If we add 3.46 and 2.3 we get 5.76....
in
Beginning Algebra
If we add 3.46 and 2.3 we get 5.76. we can round it to two significant numbers 5.8 because there is the least two significant digit 2.3 but If we...
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16 replies | 787 view(s)
05-23-2018,
09:59 AM
Indranil
replied to a thread
Which one is valid below? Is '5.42 X 10^5' equal to 542000. X 10^1 or 542000. X 10^0
in
Beginning Algebra
Thanks a lot
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2 replies | 174 view(s)
05-23-2018,
07:27 AM
Indranil
started a thread
Which one is valid below? Is '5.42 X 10^5' equal to 542000. X 10^1 or 542000. X 10^0
in
Beginning Algebra
'5.42 X 10^5' this is the number in scientific notation. I rewrite the number below in two forms. Please tell me which one is correct 1. 542000. X...
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2 replies | 174 view(s)
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