Question

3 tan^2A - 3 sec^2A +3​

Answer 1

Solution :

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We know the Trigonometric

identity :

sec²A - tan² A = 1

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Here ,

3tan²A - 3sec²A + 3

= -3( sec²A - tan²A ) + 3

= -3 × 1 + 3

= -3 + 3

= 0

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