Answer:
3 sin(41t) - 3 sin(t)
Step-by-step explanation:
The general formula to convert the product of the form cos(a)sin(b) into sum is:
cos(a) sin(b) = 0.5 [ sin(a+b) - sin (a-b) ]
The given product is:
6 cos(21t) sin(20t) = 6 [ cos(21t) sin(20t) ]
Comparing the given product with general product mentioned above, we get:
a = 21t and b = 20t
Using these values in the formula we get:
6 cos(21t) sin(20t) = 6 x 0.5 [ sin(21t+20t) - sin(21t-20t)]
= 3 [sin(41t) - sin(t)]
= 3 sin(41t) - 3 sin(t)
Therefore, second option gives the correct answer
Answer:
-1 5/6, 1 2/3, -2.1, -2.2
Step-by-step explanation:
Rember the numbers are neggative, then convert -1 2/3 to -1 4/6.
The sum of six times a number & 5.
explanation: b is your variable which is going to by multiplied by 6, since there is no other symbol next to it. afterwards, you would add 5 to get your final answer.
Answer:
a. 64 x ($)8 = ($)512
b. 45 (members) / 9(weeks) = 5 (members per week)
