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location Kolkata, India
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visits member for 2 years, 6 months
seen 26 mins ago

Dec
11
reviewed Reject Fermat's Little Theorem - Prim. Root - Find x
Sep
27
reviewed Edit Trigonometry Difficult Question
Sep
16
reviewed Approve Logs and indices questions
Sep
14
reviewed Approve Calculus Limits Problem
Dec
9
reviewed Approve Factoring question from March $2013$ AMATYC exam
Dec
8
reviewed Approve Find the domain of the function $f(x)=\dfrac{64+x^2+x}{9x^2+27x+9}$.
Nov
25
reviewed Approve Evaluate $\lim\limits_{n \to\infty} \left(\frac{n-1} {2n+2}\right)^n$
Nov
24
reviewed Approve question about the limit $\lim_{h\to0}\frac{\arcsin(x+h)-\arcsin(x)}{h}$
Nov
8
reviewed Approve Prove by induction $n^3 < 3^n$. What is the value of $n_0$?
Oct
21
reviewed Approve If $x^2+y^2=z^2$ has a solution then $5$ divides $xyz$
Oct
1
reviewed Edit The derivative of a trigonometric function.
Sep
7
reviewed Edit using induction to prove $(n+1)^2 < 2n^2$
Jul
20
reviewed Approve Evaluating $\lim\limits_{x \to 0} \frac1{1-\cos (x^2)}\sum\limits_{n=4}^{\infty} n^5x^n$
Jul
11
reviewed Approve Integral of $\frac{2}{(x^2+2x+5)^{1/2}}$
Jul
11
reviewed Approve How to solve these two trigonometric equations?
Jul
8
reviewed Approve Why is $\sin^2x + \cos^2x = 1$ important?
Jul
7
reviewed Approve Express $[\cos(x) + \sqrt3 \sin(x)]$ in the form $[r\cos(x-a)]$
Jun
13
reviewed Approve Dividing $2012!$ by $2013^n$
Jun
13
reviewed Approve Integer pair that satisfies 42x+55y
Jun
10
reviewed Approve How can i solve this separable differential equation with trigonometric function?