06-07-2016
Physics

contestada

How to find the value of sin(90+ theta) ?

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olemakpadu olemakpadu

06-07-2016

sin(90 + θ)

By addition angle formula for sine.

sin90cosθ + cos90sinθ

1*cosθ + 0*sinθ

cosθ + 0

= cosθ

sin(90 + θ) = cosθ

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