Sec theta [ 1-sin theta ] [ sec theta + tan theta ] = 1
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dissociation iconic highly s if cook gdjdjg see vhshhdf
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LHS
(sec A - sec A sin A)(sec A + tan A)
(sec A - tan A)(sec A + tan A)
sec²A - tan²A [sec²A - tan²A=1]
1=RHS
(Hence, proved)
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