Bryan R.

asked • 03/09/17

Find a value for theta

Find value for Theta?
 
sin (theta/3 + 20) = cos theta

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Mark M. answered • 03/09/17

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sin (θ/3 + 20) = cos θ
sin (θ/3 + 20) = sin (π/2 - θ)
θ/3 + 20 = π/2 - θ
θ + 60 = 3π/2 - 3θ
4θ = 3π/2 - 60
θ = 3π/8 - 15
 
Weird!
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Kenneth S.

What is the question's expressions are stated in DEGREES (or that was intended)?
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03/09/17

Mark M.

I do not understand your question.
A solution was provided consistent with the information given. 
Does my solution contain an error?
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03/09/17

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