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user80551

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 6 years, 8 months
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  • Last seen Nov 13 '19 at 22:45

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Top posts (17) All Questions Answers | Votes Newest

8 How to derive compositions of trigonometric and inverse trigonometric functions? Jun 21 '13
8 Derivative of $x^x$ using first principle Jun 30 '13
4 Evaluating $\lim_{x\to\frac{\pi}{4}}\frac{1-\tan x}{1-\sqrt{2}\sin x}$ Dec 15 '13
3 Proof that for two perpendiicular cords intersecting at P $PA+PB+PC+PD=2PO$ using vectors, O being the center. Aug 19 '13
3 Solving $\arcsin(1-x)-2\arcsin(x)=\pi/2$ Feb 27 '14
2 Is there a “more correct” way to differentiate $\frac{f(x)}{g(x)}$? Jun 25 '13
2 Find $f(x)$ from $2f'(x)-3f'(1/x)=x$ Aug 5 '13
2 How do I solve for n in this permutation question? Apr 13 '14
2 Prove that a triangle is right angled … Sep 24 '13
1 Finding ratio of external division in a triangle. Mar 31 '14
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