Answer:
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Step-by-step explanation:
So, since there are 37 children in each bus, and 7 busses, we need to multiply the two together.

Answer
The answer and procedures of the exercise are attached in the following archives.
Step-by-step explanation:
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.
Answer:

Step-by-step explanation:
The identity you will use is:

So,


Now, using the difference of sin
Note: state that 

Solving the difference of sin:



Then,

Once

And,



Therefore,

Answer: p(-2)=9
Step-by-step explanation: