Change sec ^4theta -sec^2theta in terms of tan theta
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Step-by-step explanation:
Sec⁴ theta - Sec² theta
Sec² theta ( Sec² theta - 1 )
Sec² theta ( 1 + tan² theta - 1 )
Sec² theta * tan² theta
tan² theta ( 1 + tan² theta )
tan² theta + tan⁴ theta
tan⁴ theta + tan² theta
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