Write the expression as a sine or cosine of angle sin pi/5 cos pi/2 + sin pi/2 cos pi/5

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Dirk Hillbrecht asked Mar 22, 2023

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Write the expression as a sine or cosine of angle sin pi/5 cos pi/2 + sin pi/2 cos pi/5

Mathematics
high-school

Dirk Hillbrecht asked Mar 22, 2023

by Dirk Hillbrecht

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Answer:

(cos(π) sin(π))/(2 5) + (cos(π) sin(π))/(5 2) = 1/5 cosh(i π) cos(-π/2)

Explanation:

Saidfagan answered Mar 22, 2023

by Saidfagan

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25 votes

Answer:

sin 7π/10

Explanation:

Zhutoulala answered Mar 28, 2023

by Zhutoulala

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