Answer:
Step-by-step explanation:
Equation:
1). →
2). ∴
3).
4). now plug into
5). Minimum (0,-5) ∴
4.5 and maybe 16-64. If they count -
Answer:
Cos b
Step-by-step explanation:
1/2[sin(a+b)+sin(a-b)]
1/2[sin a cos b +cos a sin b + sin A cos B - cos A sin B]
1/2[2sin a cos b]
sin a cos b