Answer:
i think the answer is C. 1/2
Answer:
That would be sina.
Step-by-step explanation:
sin(a+b) = sinacosb + cosasinb
sin(a-b) = sinacosb - cosasinb
Adding we get sin(a+b) + sin(a-b) = 2sinaccosb
so sinacosb = 1/2sin(a+b) + sin(a-b)
Answer:
6.0042
Step-by-step explanation:
6 and forty-two ten-thousandths as a decimal.
mixed number : 
decimal : 6.0042