pl answer................
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Hey... here's your answer. Wats my reward... please
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Step-by-step explanation:
I am writing theta as A because it was difficult to write theta again and again
Hope you understand
Sec⁴A - sec²A = tan⁴A - tan²A
Solving LHS
Sec⁴A-sec²A
Sec²A(sec²A-1)
(1+tan²A)(1+tan²A-1)
( 1+tan²A)(tan²A)
tan²A+tan⁴A
LHS=RHS
Hence proved
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