Prove that sec power 4 teta - sec power 2 teta = tan power 4 teta + ta

1.	Prove that sec power 4 teta - sec power 2 teta = tan power 4 teta + tan power 2
Answer» Sec² = tan² + 1.....Lhs=Sec⁴-sec²....=sec²( sec² - 1).....As sec² - 1= tan²......Lhs=sec²(tan²).....Lhs=(1 + tan²)(tan²)......Lhs=tan⁴ + tan²Hence proved

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