Question

prove that (1+ tan A- sec A) × (1+ tan A + Sec A) =2 tan A​

Answer 1

Answer:

[(1 + tan A)² - (sec A)²]

[ 1 + tan A² + 2tan A - sec² A]

[ 1 + tan² A + 2tan A -1 - tan² A ]

=> 2 tan A = RHS

Hence Proved

Step-by-step explanation:

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