# You must have solved the integral of log of cosine

**Calculus**Level 5

\(I=\displaystyle \int _{ 0 }^{ \pi /2 }{ { x }^{ 2 }\log ( \sec { (x) } ) dx } \)

If the value of \( I \) can be represented as = \(\dfrac{\pi}{A} \zeta{(B)} + \dfrac{{\pi}^{C} \log{D} }{E} \)

Find \(ABCDE+1\)

**Details and Assumptions**

1) \(A,B,C,D,E\) are positive integers. Also \(ABCDE\) means product of the integers \(A,B,C,D,E\). Also base of \( log \) is \(e\)

2)Remember \(D\) is not divisible by a perfect power(power >1 ) of any integer.

3) \(\displaystyle \zeta{(s)} = \sum _{ n=1 }^{ \infty }{ \frac { 1 }{ { n }^{ s } } } \).

**Your answer seems reasonable.**Find out if you're right!

**That seems reasonable.**Find out if you're right!

Already have an account? Log in here.