stuartemma31 stuartemma31

28-07-2021
Mathematics

contestada

solve for θ:

sin(θ-70)=cos(θ)

pls help and explain step by step
thank you

Respuesta :

antony85 antony85

28-07-2021

Answer:

Use this rule : cosx = sin (90 - x)

sin( x -70) = sin (90 - x)

x-70 = 90 - x

2x = 160

x = 80

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