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Trig Identity

  • #1

Homework Statement


(sinθ + cosθ)2 = 1 + 2sinθ cosθ

Homework Equations




The Attempt at a Solution


Would I have to foil out the left side?
 

Answers and Replies

  • #2
SteamKing
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Homework Helper
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Homework Statement


(sinθ + cosθ)2 = 1 + 2sinθ cosθ

Homework Equations




The Attempt at a Solution


Would I have to foil out the left side?
Why don't you try it? After all, you should be able to expand the square of a binomial expression rather easily.
 

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