Mathematics, 20.10.2021 15:00 yvette2003
Rita is proving that the following trigonometric identity is true: cos(−θ)sin(−θ)=−1tanθ Which step would be the first line of her proof? cosθsinθ=−1tanθ cosθ−sinθ=−1tanθ cos(−θ)sinθ=−1tanθ cos(−θ)⋅tanθ=sin(−θ) please answer I have no idea how to do this WILL MARK BRAINLIEST
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Rita is proving that the following trigonometric identity is true: cos(−θ)sin(−θ)=−1tanθ Which step...
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