Question

Sinx=cos19∘
What is the value of x?

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Answer 1

x=71

Explanation:

i took the test

Answer 2

Remember that cos is just a translation of sin and vice versa.
So:
Sin(x) = Cos(90 - x)
Cos(x) = Sin(90 - x)

Therefore, to answer your question:
Cos(19) = Sin(90 - 19)
= Sin(71)