) (1 + tan 0 + sec 0) (1 + cot 0 - cosec ) =?
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Step-by-step explanation:
(1/tano+tano/tano+seco/tano)(1+coto-coseco)
=(Coto+1+cosec)(1+coto-coseco)
=(1+coto)²-coseco²
=1+coto²+2coto-coseco²
=Cosec²-coseco²+2coto
=2coto
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