Type the correct answer in each box. If cos -105º = -0.26 and csc -105º = -1.03, then cos 105º = ? and csc 105º = ?

Step-by-step explanation:

We are given that:

And we want to find:

Part A)

Remember that cosine (and secant) is an even function. By definition, this means that:

Therefore, since we know that cos(-105°) is about -0.26, it follows from the definition that:

Part B)

Remember that cosecant (and sine) is an odd function. By definition, this means that:

We know that csc(-105°) is about -1.03.

By the above definition, we can rewrite csc(105°) as csc(-(-105°)) or -csc(-105°).

Hence, it follows that:

so then what are you asking?

step-by-step explanation: