Question

If sinA=cosA and the value of 'A' lies between 0° and 90°,then A=.... *
0°
45°
90°
Other​

Answer 1

A=45°

Hope it helps you

Answer 2

Answer:

45 degree

sinA =cosA

cos(90-A)=cosA

90=2A

therefore A=45

identity used = sinA= cos(90-A)