The answer to this question is B) 0
Yes! your right. The answer is correct :)
Answer:
cos6x.
Step-by-step explanation:
We use the identity
cosAcosB - sinAsinB = cos(A+B)
so cos5xcosx - sin5xsinx = cos(5x + x)
= cos6x.
Answer:B cos 29°, sin 61° since,cos(x)=sin(90°-x) or sin(x)=cos(90°-x)
