Then? I think there's more to the question
You need to use the identity
cos(90-u)=sin(u)
if u=x-20
cos(90-x+20)=sin(x-20)
cos(110-x)=sin(x-20)
substituting in the original function
cos(110-x)=cos(42)
for the functions to be equal there input must be equal
110-x=42
x=68
Answer:
The answer is 3x−7
Step-by-step explanation:
uvu
Scott has 28 football cards. Hope it help!
The third term should be 25 making the trinomial a perfect square of (x-5)^2
An easy way to find this last term is take half of the middle term's coefficient and square that.