Mathematics
03.10.2022 19:45
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If the sin(50) = 10/15 what is cosine(40)? can someone explain this to me

If the sin(50) = 10/15 what is cosine(40)? can someone explain this to me
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ily50
ily50
5,0(41 marks)
Recall that

\cos(90-x)^\circ=\sin x^\circ

which tells you that \cos40^\circ=\cos(90-50)^\circ=\sin50^\circ, so in fact

\cos40^\circ=\sin50^\circ=\dfrac{10}{15}

Attached is an image demonstrating why the identity is true.

If the sin(50) = 10/15 what is cosine(40)?   can someone explain this to me
macattack6276
macattack6276
4,9(58 marks)

No solution

Step-by-step explanation:

your welcome

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