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

User Jacob Krall
by
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2 Answers

4 votes
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)
User Mauro Casas
by
8.5k points
4 votes

Answer:

the answer is x = 20

hope this helps

User Jasonnoahchoi
by
8.0k points
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