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katovenus [111]
2 years ago
5

Find cos 2α; the angle α is in the fourth quadrant, and sin α = -0.45. Which double-angle identity should you use?

Mathematics
1 answer:
mihalych1998 [28]2 years ago
4 0

Answer:

it is the last one

Step-by-step explanation:

me big brain

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A set of data with 750 numbers is normally
kifflom [539]

Answer:

510

Step-by-step explanation:

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Consider the sequence 8, 6.2, 4.4.2.6. ... The function that describes the sequence is y(x) = 9.8 - 1.8(x). What is f(5)
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Hope this helps


5 0
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