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Vesnalui [34]
2 years ago
15

Express M=cos3A + cos A and N = sin3A + sin A as a product form​

Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
3 0

Answer:

2cosAcos2A, 4sinAcos^2A

Step-by-step explanation:

cos3A+cosA

2cos((3A+A)/2)cos((3A-A)/2)

2cos(4A/2)cos(2A/2)

2cosAcos2A

sin3A+sinA

2sin((3A+A)/2)cos((3A-A)/2)

2sin(4A/2)cos(2A/2)

2sin2AcosA

4sinAcos^2A

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Answer:

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Step-by-step explanation:

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3 years ago
It's very urgent plss answer
Lesechka [4]

The solution of the equation 4p – [(2p – 3) / 2] = 6 with variable p will be 1.5.

<h3>What is the solution of the equation?</h3>

The solution of the equation means the value of the unknown or variable.

The equation is given below.

4p – [(2p – 3) / 2] = 6

On simplifying, we have

(8p – 2p + 3) / 2 = 6

               6p + 3 = 12

                     6p = 9

                       p = 1.5

More about the solution of the equation link is given below.

brainly.com/question/545403

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8 0
1 year ago
Which statement is true
igomit [66]

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8 0
3 years ago
If the statement is e is the midpoint of df what is the reason
Katena32 [7]

For E to be the midpoint of DF, it needs to divide DF in 2 equal segments, DE and EF. If E is the midpoint of DF, then DE and EF are equal, so the reason is that the expressions for DE and EF are equal. The reason is:

6x+5=8x-1

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1 year ago
Find the 7th term of a geometric sequence with t1 = 6 and r = 4.
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To solve for the 7th term of a geometric sequence with t1 = 6 and r = 4, we use the following equation:

<span>
a(n) = a(1) r^(n-1)
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a7 = 24576</span>

Hope this answers the question. Have a nice day. Feel free to ask more questions.

8 0
3 years ago
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