If x < 90° and sin (x + 28°) = cos (3x - 78°), then find x.
Answers
Answered by
20
sin(x+28)= sin(90-3x+78)
x+28= 168-3x
4x=140/4
x= 35
x+28= 168-3x
4x=140/4
x= 35
Answered by
2
Answer:x=35,8
Step-by-step explanation:
Convert to sin and simplify
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