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Len [333]
3 years ago
8

Please help me asap. Prove that: Sin(A+B).Sin(A-B)=Sin²A.Sin²B

Mathematics
2 answers:
Dennis_Churaev [7]3 years ago
8 0

Answer:

Sin(A+B).Sin(A-B)=sin²A-sin²B

sorry if there is .I put -.

kow [346]3 years ago
7 0

Answer:  Sin²A.Sin²B*

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Mapiya writes a series of novels. She earned \$75{,}000$75,000dollar sign, 75, comma, 000 for the first book, and her cumulative
qwelly [4]

Answer:

E(n)=75000 \times 2^n

Complete question:

write a function that gives mapiyas cumulative earnings E(n), in dollars when she has written n sequel's

Step-by-step explanation:

According to the question, she earned $75000 for the first book.

Also,We are  given that her cumulative earnings double with each sequel that she writes.

Assuming she has written n sequel's

Now since we are given that her cumulative earnings double with each sequel

So, her initial earning will be 2^n times

So, her earning will be : 75000 \times 2^n

Now we are given that cumulative earnings is denoted by E(n)

So, the function becomes :E(n)=75000 \times 2^n

Hence a function that gives Mapiya's cumulative earnings E(n), in dollars when she has written n sequel's  is  E(n)=75000 \times 2^n

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