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dlinn [17]
2 years ago
10

For each expression, combine like terms and write an equivalent expression with fewer terms. 4x+3x

Mathematics
1 answer:
hoa [83]2 years ago
6 0

9514 1404 393

Answer:

  7x

Step-by-step explanation:

We can factor out x and simplify.

  4x +3x = x(4 +3) = 7x

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CosA.cos2A.cos4A=sin8A/8sinA​
alexgriva [62]

I assume you're supposed to establish the identity,

cos(A) cos(2A) cos(4A) = 1/8 sin(8A) / sin(A)

Recall the double angle identity for sine:

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Then you have

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as required.

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