Parth Kohli
Reputation
5,185
Next privilege 10,000 Rep.
Access moderator tools
1 19 52
Impact
~141k people reached

# 124 Posts

 Apr 21 answered Find $[3T^{n+2} + 3T^{n+1} + 3T^{n}]_{B}$ where $T(a,b,c) = (b,c,a)$ Apr 19 answered Prove $\sum _{k=2}^{n} k(k-1) {n \choose k}=n(n-1)2^{n-2}$ Jan 6 answered Find the range of $k$ for which the inequality $k\cos^2x-k\cos x+1\geq0 ,\forall x\in(-\infty,\infty)$ holds. Jan 1 answered The value of the polynomial at given point. Oct 7 answered Permutation in which the $A's$ appear together in a block of $4$ letters or the $B's$ appear together in a block of $3$ letters Aug 7 answered Prove identity: $\frac{1+\sin\alpha-\cos\alpha}{1+\sin\alpha+\cos\alpha}=\tan\frac{\alpha}{2}$ May 29 answered Find an acute angle $\gamma$ such that $\sin \gamma + \cos \gamma= \sqrt{2}$ May 24 answered How to convert $\cos4\theta$ into $\cos3\theta$ Oct 22 answered Without actually calculating the value of cubes find the value of $(1)^3+(2)^3+2(4)^3+(-5)^3+(-6)^3$. Also write the identity used Sep 20 answered How do I factor $z^4+2z^3+4z^2+2z+3$? Aug 31 answered Finding the value of $\frac{\cos^4\beta}{\cos^2\alpha} + \frac{\sin^4\beta}{\sin^2\alpha}$. Aug 30 answered Adding $2$ absolute values together: $|x+2| + |x-3| =5.$ Jun 24 answered Problem of quadratic equation May 20 answered Inequality involving conjugate numerator/denominator pairs May 17 answered Absolutet Value Inequality with cases number line May 17 answered what is the solution for this equation : $2^x-6(2)^{-x}=6$ May 17 answered Graph this function: F(x)=$-2^{|x|+1}$. Apr 22 answered How to solve this inequality? Apr 13 answered Problem : Solve $|x^2+x-4| =|x^2-4| +|x|$ Mar 19 asked Prove that $\rm area(\triangle ABE) = area (ABCD)$