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sweet [91]
3 years ago
14

If cos x=1/2 and 90°

Mathematics
1 answer:
Talja [164]3 years ago
5 0

When I factor[ 2cos (square) - 5cos -3], I get (2cos + 1)(cos - 3). 2cos + 1 = 0, 2cos = -1, cos = -0.5,. Using inv cos on calculator, I get 120 degree related angle.

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Answer:

The answer is<u> D.</u> h+3/j+6.

Step-by-step explanation:

Given:

The equation h + 3 = jk + 6k.

Now, to get the mathematical expression.

h + 3 = jk + 6k

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Then, dividing both sides by j+6  we get:

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k=\frac{h+3}{j+6}

Therefore, the answer is D. h+3/j+6.

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