Aayush Agrawal
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### Questions (79)

 4 How can I get the value for $\theta$ when $\cos(\theta) = \frac{\sqrt{3}-1}{2\sqrt2}$, $\sin(\theta) = \frac{\sqrt3+1}{2\sqrt2}$ 4 Prove that if $x = \sqrt{a^{\sin^{-1} t}}$ and $y = \sqrt{a^{\cos^{-1}t}}$ then $\frac{dy}{dx}$ = $-\frac{y}x$ 4 How is substituting $-y$ for $y$ with $y \neq 0$ legal? 4 Solve $\int (4x+2)\sqrt{x^2+x+1}\,dx$ 4 Two questions for coordinate geometry

### Reputation (676)

 +3 How can you know all factors < 10 of a number if you know the number modulo 2520? +5 Proving russian roulette survival statistics +5 Where did i go wrong in trying to find the intervals where y is increasing and decreasing? +5 Prove that if $x = \sqrt{a^{\sin^{-1} t}}$ and $y = \sqrt{a^{\cos^{-1}t}}$ then $\frac{dy}{dx}$ = $-\frac{y}x$

 1 Proving russian roulette survival statistics

### Tags (51)

 1 probability × 4 0 geometry × 7 0 algebra-precalculus × 12 0 linear-algebra × 5 0 trigonometry × 12 0 polynomials × 4 0 real-analysis × 8 0 calculus × 4 0 derivatives × 8 0 combinations × 3

### Accounts (20)

 Mathematics 676 rep 312 Stack Overflow 314 rep 314 Physics 231 rep 29 Personal Finance & Money 143 rep 114 Chemistry 137 rep 5