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kolin89
28.07.2021 •
Mathematics
Solve for θ:
sin(θ-70)=cos(θ)
pls help and explain step by step
thank you
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Ответ:
Use this rule : cosx = sin (90 - x)
sin( x -70) = sin (90 - x)
x-70 = 90 - x
2x = 160
x = 80
Ответ: