Question

12. If sin A = cos A, find the value of
2 tan- A - 2 sec? A + 5.​

Answer 1

Answer:

Given, sinA=cosA

tanA=1

tanA=tan45

A=45∘

Now, 2tan2A−2sec2A+5

= 2tan245−2sec245+5

= 2(1)2−2(2)2+5

= 2−4+5

= 3