khaliyahthomas2 khaliyahthomas2

24-04-2017
Mathematics

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If 0° < θ < 90°, is sin θ equal to cos (90° – θ), and for what reason?

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Beginner123 Beginner123

24-04-2017

Yes since they're complementary angles (you can check on a calculator for ex, sin of 20 = cos of 70)

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