khaliyahthomas2
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 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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