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2sec²A+ 4cosec²A - 2tan²A - 4cot²A find solution

A2

B6

C8

D4

Answer:

B. 6

Read Explanation:

sec2A=1+tan2Asec^2A=1+tan^2A

cosec2A=1+cot2Acosec^2A=1+cot^2A

2(1+tan2A)+4(1+cot2A)−2tan2A−4cot2A2(1+tan^2A)+4(1+cot^2A)-2tan^2A-4cot^2A

2+2tan2A+4+4cot2A−2tan2A−4cot2A2+2tan^2A+4+4cot^2A-2tan^2A-4cot^2A

(2+4)+(2tan2A−2tan2A)+(4cot2A−4cot2A)(2+4)+(2tan^2A-2tan^2A)+(4cot^2A-4cot^2A)

6+0+0+=66+0+0+=6


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