Show : `2 sec^2 theta - sec^4 theta - 2 cosec^2 theta + cosec^4 theta = cot^4 theta - tan^4 theta`

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Show : `2 sec^2 theta - sec^4 theta - 2 cosec^2 theta + cosec^4 theta = cot^4 theta - tan^4 theta`
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Yaha teachers ko road se utha kr laya jata hai kya? Doubtnut is useless

drp