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Rainbow [258]
4 years ago
7

Please help me solve this: cos^2x=0.36, find sin^2x

Mathematics
1 answer:
mamaluj [8]4 years ago
7 0

The useful trig identity is

... cos(x)² + sin(x)² = 1

Then

... sin(x)² = 1 - cos(x)²

For your value of cos(x)² = 0.36, this becomes

... sin(x)² = 1 - 0.36 = 0.64

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