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olga55 [171]
3 years ago
6

Write the trigonometric expression as an algebraic expression in u. cos (sin-1 u)

Mathematics
1 answer:
harkovskaia [24]3 years ago
3 0
Cos(arcsin(u)) = √(1 - u²)

_____
You want cos(α) where sin(α) = u.
You know that
  cos(α)² + sin(α)² = 1
  cos(α)² = 1 - sin(α)² = 1 - u²
  cos(α) = √(1 - u²)
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<u>Given</u>:

Given that the measure of arc DF is 162°

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