How do prove this to be true?
(secθ/sinθ) - (sinθ/cosθ) = cotθ
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How do prove this to be true?
(secθ/sinθ) - (sinθ/cosθ) = cotθ
Let's fiddle with the left-hand side. Re-write the first term as
Multiply the second term by "1", in the form ofand it becomes
Now both terms of the LHS have the same denominator, and can therefore be combined. Next, apply the Pythagorean Identity to the resulting numerator, and take it from there...
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