Question

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------ sec⁴ A − sec² A is equal to<br />
(a)tan² A − tan⁴ A<br />
(b)tan⁴ A − tan² A<br />
(c)tan⁴ A + tan² A<br />
(d)tan² A + tan⁴ A​

Answer 1

Answer:

b) tan4 a - tan2 a this is the answer

give me more points

Answer 2

Hey dude,

Option b is your answer.