sec times tan times sin equals?
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sec times tan times sin equals?
Is that:
?
Convert the sec and tan ratios into sin and cos ratios first.
if it is secθ x tanθ x sinθ , then its pretty simple
secθ = 1/tanθ
1/tanθ x tanθ x sinθ
the 1/tanθ will cancel with the tanθ
so
secθ x tanθ x sinθ = sinθ since the first two terms cancel each other out
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