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Tag: proof

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1. ### Proof for parallel lines

• Replies: 8
• Views: 487
Last Post: 01-14-2019 11:27 PM
by Dr.Peterson
2. ### Proof for Double Angle Formulae in a diagram

• Replies: 5
• Views: 450
Last Post: 11-13-2018 06:32 AM
by Harry_the_cat
3. ### Indirect Proof

• Replies: 7
• Views: 452
Last Post: 10-09-2018 06:04 PM
by jtayag0622
4. ### Why is the sum of (nCk)*(mCr-k) equal to (m+n)Cr?

• Replies: 11
• Views: 767
Last Post: 09-24-2018 09:11 AM
by Dr.Peterson
5. ### Proof help! integration -

• Replies: 1
• Views: 415
Last Post: 05-19-2018 06:16 PM
by Subhotosh Khan

Forum:
Calculus

6. ### Basic Algebraic exponential formula. Solve ((X/287,173.53)^1/10)-1=.865, w/ proof

• Replies: 2
• Views: 593
Last Post: 03-25-2018 09:19 AM
by lookagain
7. ### Exponential factorial proof help! (Determine the ones digit of 10!!. Explain....)

• Replies: 5
• Views: 776
Last Post: 03-07-2018 09:57 AM
by lev888
8. ### Prove formula: Prove that for all integers n, n>=1, 1 + 3 + 5 + ... + (2n-1) = n^2​

• Replies: 1
• Views: 500
Last Post: 02-08-2018 01:48 PM
by tkhunny
9. ### Ratios Of Lines Within Quadrilateral (Proof): Show AX:XC is same as AB:BC

• Replies: 11
• Views: 1,599
Last Post: 01-27-2018 01:35 PM
by Dr.Peterson
10. ### Switching Numbers: infinite ordered series with two elements in the wrong order

• Replies: 0
• Views: 608
Last Post: 01-24-2018 03:04 PM
by wonnacott
11. ### Proof by Induction that 3^(4n)-1 is divisible 8.

• Replies: 2
• Views: 800
Last Post: 01-02-2018 11:28 AM
by JeffM
12. ### [Linear Algebra] Matrix "proof" type problem involving determinants ( I think)

• Replies: 1
• Views: 687
Last Post: 11-05-2017 09:28 AM
by barrick
13. ### Prof by induction : 3|n^2 => 3|n

• Replies: 1
• Views: 939
Last Post: 09-20-2017 08:46 AM
by tkhunny
14. ### String formed by the last 4 elements mod 10

• Replies: 1
• Views: 796
Last Post: 06-26-2017 12:36 PM
by OanaAndreea
15. ### Trigonometry Identity Prob: Verify (tan^2x+1)(cos^2(-x)-1)=-tan^2x

• Replies: 2
• Views: 3,061
Last Post: 08-18-2016 07:12 AM
by hoosie
16. ### Trig Identity Proof: a cos(t) + b sin(t) = sqrt{a^2+b^2} sin(t) + arctan(a/b)

• Replies: 4
• Views: 1,419
Last Post: 08-02-2016 06:04 PM
by Subhotosh Khan
17. ### For sqr mtrx A w/ A^p=0 (p some natural), prove (I-A)^(-1) = I + sum[k=1,p-1] A^k

• Replies: 3
• Views: 1,831
Last Post: 07-30-2016 02:10 PM
by Ishuda
18. ### DISCRETE MATH: Describe all subsets of ℕ w/ 3 as lower bound w.r.t. order |

• Replies: 2
• Views: 2,011
Last Post: 12-05-2015 08:03 PM
by NookLines
19. ### Complex numbers proof question

• Replies: 3
• Views: 1,991
Last Post: 11-16-2015 07:10 PM
by pka
20. ### Algebra question - prove (1/(a+2))+(1/(b+2))=(1/(c+2))+(1/2) for c>b>a>1

• Replies: 4
• Views: 2,762
Last Post: 11-11-2015 01:46 PM
by stapel
21. ### Time derivative Question

• Replies: 3
• Views: 4,079
Last Post: 09-03-2015 10:44 AM
by stapel

Forum:
Calculus

22. ### Formal proof of sequence limits

• Replies: 3
• Views: 3,724
Last Post: 05-16-2015 12:59 AM
by Ishuda

Forum:
Calculus

23. ### Proving a tangent line of a parabola

• Replies: 6
• Views: 4,383
Last Post: 04-13-2015 11:07 PM
by Jomo
24. ### Epsilon Delta Proof

• Replies: 2
• Views: 2,128
Last Post: 12-24-2014 12:46 AM
by MTL

Forum:
Calculus

25. ### Generalized Holder Inequality

• Replies: 2
• Views: 1,844
Last Post: 12-18-2014 12:27 PM
by pka

Forum:
Calculus

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