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zlopas [31]
2 years ago
10

Given that sin? x + cos2x = 1

Mathematics
1 answer:
Pachacha [2.7K]2 years ago
8 0

Answer:

the answer is

\frac{ \sqrt{23} }{5}

cause sin²x= 2/25

so cos²x would be 1-2/25= 23/25

then cos x is what I wrote as the answer

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