sinx=cos19∘
What is the value of x?
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x =
Sin x = cos (19)
sin x = .9455
arcsin (sin x) = x = arcsin (.9455) = 71 degrees
Here's one thing to remember....because the sine and cosine are co-functions ......
sin (90 - x)° = cos x° .....so letting x = 19°, we have that
sin (90 - 19)° = cos 19°
sin 71° = cos 19°
So....x = 71°