(1+tan a+sec a) (1+cot a- cosec a)
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Answer:
Step-by-step explanation:
(1+tan a + sec A)(1+cot A- cosec A)
(sec A + sec A)(cosec A - cosec A)
(2sec A)(0)
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Answer:(1+tana+seca)(1+cota-coseca)
=(1+sina/cosa+1/cosa)(1+cosa/sina-1/Sina)
=(cosa+sina+1/cosa)(sina+cosa-1/sina)
=(sina+cosa) 2-(1)2
=1+2sinacosa-1/sinacosa
=sinacosa
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