Find the value of
(sec A – tan A) (sec A + tan A) –(cosec A – cot A) (cosec A + cot A).
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the answer of this questions is 0(zero)
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Answer:
( sec A -tan A) ( sec A + tan A ) - ( cosec A - cot A ) ( cosec A + cot A )
(sec^A - tan ^A) ( cosec ^ A - cot ^ A )
(1+tan^A- tan^A) ( 1+ cot^A- cot ^A)
( 1 ) ( 1)
1
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