Question

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

Answer 1

Answer:

3

Step-by-step explanation:

sin A = cos A

only when A = 45 degree

• then 2 tan square 45 degree - 2 Sec square 45 degree + 5;
• = 2 × root 1 square - 2 × root 2 square + 5
• = 2- 4+5 =3