Write in terms of cos and sin function.

cotx*secx

I know cotx = cosx/sinx and sec x= 1/cos x.

but how do i solve it?

Indicate specific topic so tutor with the right knowledge will respond.

To simplify the expression cot(x) · sec(x), we can use the identities cot(x) = cos(x)/sin(x) and sec(x) = 1/cos(x).

First, substitute cot(x) and sec(x) with their respective expressions:
cot(x) · sec(x) = (cos(x)/sin(x)) · (1/cos(x))

Next, we can simplify the expression by canceling out common terms. In this case, the cosine terms in the numerator and the denominator can be canceled out:
cot(x) · sec(x) = (cos(x)/sin(x)) · (1/cos(x))
= (cos(x) · 1) / (sin(x) · cos(x))

Since the cosine terms cancel out, we are left with:
cot(x) · sec(x) = 1 / sin(x)

Therefore, in terms of the sine function, cot(x) · sec(x) simplifies to 1/sin(x).