Question

if cos^2A - sin^2A= 1/2 .Then find tan A

Answer 1

Answer:

Step-by-step explanation:

1-sin^2A-sin^2A=1/2

1-2sin2A=1/2

1/2=2sin^2A

sin^2A=1/4

sinA=1/2

A=45°

tan45°=1