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hey pal your answer is up
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Step-by-step explanation:
Since sin A = cos A , also sin^2 A = cos^2 A
, also sin^2 A + cos^2 A = 1 becomes. 2cos^2 A = 1. ==≥ cos^2 A = 1/2
now ,
2tan^2 A - 2sec^2 A + 5
= 2 [ sin^2 A / cos^2 A ] - 2 ( 1/cos^2 A ) + 5
= 2 (1) - (2/1/2) + 5
= 2 - 1 + 5
= 7 - 1
= 6
So the value is 6
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