How can I prove the following equality
137551
integral $\int_0^\pi \frac{\cos(2t)}{a^2\sin^2(t)+b^2\cos^2(t)}dt$
117262
Proving a logarithm inequality
117680
Prove that $|e^{i\theta_1}-e^{i\theta_2}| \leq |\theta_1 - \theta_2|$
18046
Prove the following equality: $\sum_{k=0}^n\binom {n-k }{k} = F_n$
107335
Prove equality between binomial coefficients.
115335
How can we prove this integral inequality?
15232
Proving an inequality involving real powers
91131
Question regarding an inequality
118613
Proving an inequality: $|1-e^{i\theta}|\le|\theta|$
2635
equality of two operators...
133076
Prove this sum equal to an expression.
120309
Number Theory Inequality Proof
103536
How to prove $|e^{i\theta} - 1| \leq |\theta|$?
62428
How to prove this inequality in Banach space?
128189
Proving Integral Inequality
105047
Prove the inequality $|xy|\leq\frac{1}{2}(x^2+y^2)$
73253
Question About equal signs in Theorems