Question #a0e30

1 Answer
Jan 5, 2018

Yes. See explanation.

Explanation:

The period of #cot(x)# is #pi# so any integer multiple of #pi# will not impact the value of the function, so:

#cot(-t-5pi) = cot(-t)#.

Cotangent is an odd function, so we know that:

#cot(-t) = -cot(t)#.

So #cot(-t-5pi) = -cot(t)#.