Prove these identitys sinO/1+cosO=1-cosO/sinO 1-tanO= -tanO(1-1/tanO)
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Originally Posted by andrewpark2 Prove these identitys sinO/1+cosO=1-cosO/sinO 1-tanO= -tanO(1-1/tanO) for the first one, multiply the left side by note that for the second one, just distribute the right side
Originally Posted by andrewpark2 Prove these identitys 1-tanO= -tan O(1-1/tan O) Consider RHS
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