What is the value of x? sin(x+16)°=cos(2x+14)°

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asked Jun 19, 2018 205k views

2 Answers

Mauro Casas · Answer 1 · 2018-06-20T20:13:45+0000

hello :
by identity :
sin(x)° =cos(90-x)°
solve : sin(x+16)°=cos(2x+14)°
cos(90-(x+16))°= cos(2x+14)°
cos (74-x)°= cos(2x+14)°
74-x =2x+14+360k.......(1)
or

74-x =- (2x+14)+360k' ......(2)
find x with (1) and (2)

What is the value of x? sin(x+16)°=cos(2x+14)°

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