Math, asked by poojalekshmi, 3 months ago

find the value
of 19 sec²A - 19 tan²A

Answers

Answered by ashwin0206k

3

Step-by-step explanation:

took 19 common:-

19(sec^2-tan^2)

19×1. {1+tan^2A=sec^2A}

19

Answered by arunsgh3376

3

You have to solve it by Rationalising the denominators..

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