Sec4A-sec2A= tan2A+Tan4A
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Answer:
I explain step by step
Step-by-step explanation:
tan2A+tan4A
tan2A(1-tan2A)
(sec2A-1)(1+tan2A).(1+tan2A=sec2A)
(sec2A-1sec2A)
sec4A-sec2A
I hope helpful for you
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