Which of the following is equivalent to sinθ tanθ + cosθ?
Added by Matthew C.
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So, if we substitute tanθ in the original expression, we get sinθ * (sinθ/cosθ) + cosθ. This simplifies to (sin²θ/cosθ) + cosθ. We also know that sin²θ + cos²θ = 1. Show more…
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