sec^2= 1/cos^2, and -tan^2= -sin^2/cos^2 so on the left..
(-sin^2 +1)/cos^2=
(cos^2)/cos^2=
1
Verify each trigonimetric equation by substituting identities to match right hand side of the equation to the hand side of the equation. Please help.
-tan^2x+sec^2x=1
1 answer
1 answer