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QBillie

Trigonometric equation

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  • eric
    2019-12-03 23:49:29
    You may choose sin(π/2-θ)=cosθ as an answer
  • QBillie
    2019-12-04 00:05:37
    Thank you. How should I explain it? How did the diagram show it’s this expression?
    •  eric 2019-12-03 23:49:29
    • You may choose sin(π/2-θ)=cosθ as an answer
  • eric
    2019-12-04 01:14:49
    You may label the length of three sides by a,b,c. Then prove the identity using the symbols
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