Question

Solve :
5 tan 2 A -5 sec 2 A + 1 =

Answer 1

Step-by-step explanation:

5tan 2A - 5 sec2A +1

5 (tan2A -sec2A) +1

5×1 +1

6 ..

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Answer 2

SOLUTION

TO SIMPLIFY

5 tan²A - 5 sec²A + 1

FORMULA TO BE IMPLEMENTED

We are aware of the Trigonometric formula that

sec²A - tan²A = 1

EVALUATION

Here the given expression is

5 tan²A - 5 sec²A + 1

We simplify it as below

5 tan²A - 5 sec²A + 1

= - 5 ( sec²A - tan²A ) + 1

= - 5 + 1

= - 4

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