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Illusion [34]
2 years ago
10

Given that sin x = cos 2x find the value of x​

Mathematics
1 answer:
natali 33 [55]2 years ago
7 0

Answer:

The most straightforward way to obtain the expression for cos(2x) is by using the "cosine of the sum" formula: cos(x + y) = cosx*cosy - sinx*siny. cos(2x) = cos² (x) - (1 - cos²(x)) = 2cos²(x) - 1. = 2cos²(x) - 1.

Step-by-step explanation:

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5 1⁄3 ÷ 2 2⁄7. Porasseee heppp
Vsevolod [243]

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Simple Division. See explanation.

Step-by-step explanation:

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3 0
3 years ago
If A = -3n + 2, and B = 5n - 7, what is the value of A + B, in simplest form?
Sever21 [200]

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