7. 4 tan’ A - 4 sec? A is equal to:
(A) 2
(B) 3
C) 4
(D) -4
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Answer:
(c)4
Step-by-step explanation:
4tanA - 4SecA
4(tanA -secA)
so,tanA-secA -1
then,4multiply by 1
then, the answer is 4
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