Question

How do I find the value of csc 11π/2?

Answer 1

Find the value of csc((11pi)/2)

Ans: - 1

Explanation:

`csc ((11pi)/2) = 1/(sin ((11pi)/2)`. Find `sin ((11pi)/2)`

`sin ((11pi)/2) = sin ((3pi)/2 + (8pi)/2) = sin ((3pi)/2) = - 1`

Therefor: `csc ((11pi)/2) = 1/(sin) = -1`