Question

cos 40 + x is equal to sin 30 find the value of x

Answer 1

This is very simple.
cos(40 + x)=cos 60
40+ x=60
x=20

Answer 2

Hey !!! ^_^

Here is your answer

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As we know ,


Sin θ = Cos ( 90 - θ )


Cos(40° + x ) = Sin30°

Cos ( 40° + x ) = Cos( 90° - 30)

40° + x = 60°

x = 60° - 40°

x = 20° ...


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I HOPE IT WILL HELP YOU

Thank you

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