Question

(1 - tanA)² + (1-cotA)² = (1+tan²A) + (1 + cot²A)


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Answer 1

-2tan²A=2

Step-by-step explanation:

1+tan²A -2tanA +1+cot²A-2cotA= sec²A +cosec²A

sec²A-2tanA +cosec²A-2cotA=sec²A+cosec²A

-2tanA-2cotA=0

-2tanA-2/tanA=0

-2tan²A-2whole divided by tanA=0

-2tan²A -2=0

-2tan²A=2

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