Question

Question #5b4da

Answer 1

`0`

Explanation:

Remember that `cot(theta)=1/tan(theta)`.

Then, `cot(90^@)=1/tan(90^@)`. Recall that `tan(90^@)=oo`. Then, `cot(90^@)=1/tan(90^@)=1/oo=0`.