# Mr.ØØ7

less info
reputation
729
bio website location Bathinda, India age 18 member for 1 years, 1 months seen Apr 2 at 4:31 profile views 541

Best Way to solve problems is to Avoid problems

 32 Is value of $\pi = 4$? 16 Evaluating $\int_0^{\infty}\frac{\ln(x^2+1)}{x^2+1}dx$ 12 Complex numbers $z$ such that $|z|= 1$ 7 Finding the 9th derivative of $\frac{\cos(5 x^2)-1}{x^3}$ 5 How can I prove that $xy\leq x^2+y^2$?

# 2,672 Reputation

 +110 Is value of $\pi = 4$? +20 Evaluating $\int_0^{\infty}\frac{\ln(x^2+1)}{x^2+1}dx$ +10 Complex numbers $z$ such that $|z|= 1$ +10 Prove that Statements forms are tautologies

# 23 Questions

 7 Trigonometric function integration: $\int_0^{\pi/2}\frac{dx}{(a^2\cos^2x+b^2 \sin^2x)^2}$ 5 Prove $ax^2+bx+c=0$ has no rational roots if $a,b,c$ are odd 4 Finding the maximum of $\frac{a}{c}+\frac{b}{d}+\frac{c}{a}+\frac{d}{b}$ 4 How many natural numbers $n$ exist for $n=a^2−b^2−c^2$ 4 Prove $P(x)>0, \forall \space x>1$

# 71 Tags

 42 homework × 18 32 fake-proofs 34 integration × 17 23 logarithms × 4 33 geometry × 5 20 trigonometry × 10 33 analysis × 3 20 complex-analysis × 2 32 pi 19 algebra-precalculus × 11

# 5 Accounts

 Mathematics 2,672 rep 729 Physics 2,298 rep 627 Meta Stack Exchange 213 rep 10 Board & Card Games 133 rep 4 Arqade 128 rep 4