lab bhattacharjee
Reputation
158,549
99/100 score
 11h answered Operation on inverse trigonometric functions 18h answered Find $\int (\sin^2 x - 2\cos^2 x)\,dx$ 19h answered solve $\sin(z)=-1$ in the set of complex numbers 1d answered Find $\lim_{x\to 0} \left(\frac {\tan x }{x} \right)^{\frac{1}{x^2}}$. May 1 answered If $y=9\sec^2x+16\csc^2x$,find the minimum value of $y$ May 1 answered Solve $2\cos x + 1 = 0$ for x, where $\pi \le x \le \frac{3\pi}{2}$ May 1 answered Evaluate the $\lim_{x \to \ -\infty} (x + \sqrt{x^2 + 2x})$ May 1 answered Find how many solutions the congruence $x^2 \equiv 121 \mod 1800$ has May 1 answered $1^k+2^k+3^k+…+(p-1)^k$ always a multiple of $p$? May 1 answered How to maximize the product xy? May 1 answered Given $\tan a = -7/24$ in $2$nd quadrant and $\cot b = 3/4$ in $3$rd quadrant find $\sin (a + b)$. May 1 answered Unseen Theorem Based on parallelogram Apr 30 answered Maximum of $xy+y^2$ subject to right-semicircle $x\ge 0,x^2+y^2\le 1$ Apr 30 answered Prove that $\int_{0}^{\frac{\pi}{2}}{\frac{\sin(2n+1)x}{\sin(x)}dx}=\frac{\pi}{2}$ for $n\ge0$ Apr 30 answered Multiplying two logarithms (Solved) Apr 30 answered Antiderivative of y = $\dfrac {x+22} {x^{2}+2x-8}$ Apr 30 answered Solving $\arcsin\left(2x\sqrt{1-x^2}\right) = 2 \arcsin x$ Apr 29 answered Solving $\arcsin(\sqrt{1-x^2}) +\arccos(x) = \text{arccot} \left(\frac{\sqrt{1-x^2}}{x}\right) - \arcsin( x)$ Apr 29 answered What would be the value of the limit $\lim _{x\to \infty} (\frac{3x +1}{3x-1})^{4x}$? Apr 25 answered Solve $\cot^2(x) -\cot(x) - 1=0$