1/5 depending on what you mean by the question you stated.
12.0 is the answer I think
Okay 2
Really
4
During
32
Square
67
Answer:
a) cos
b) sin
c) tan maybe?
Step-by-step explanation:
Answer:
cos 78⁰.
Step-by-step explanation:
Use cos 2A = cos^2 A - sin^2 A
so cos^2 39 - sin^2 39 = cos (2*39) = cos 78.
