Question

if sin A = cos A, find the value of 2 tan^2 A - 2 sec^2A +5​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

sin A =cos A

then sin90-A =cos A

cos 90-A=cos A

90-A=A

2A=90

A=45

$2 \tan {a}^{2} - 2$

2(1)-2(2)+5

2-9

7