Answer:
3
Step-by-step explanation:
Given:

To find the degree of the polynomial:
The degree of the given polynomial is, 2+3=5
So, the given polynomial is a fifth-degree polynomial.
Thus, the answer is a fifth-degree polynomial.
Y=-7 use distributive property add like terms
Answer:

Step-by-step explanation:
Using the Pythagorean identity
sin²x + cos²x = 1, then
sinx = 
Note that (
)² = 
sinΘ = 
=
= 