Question

1 - tan square 45 by 1 + tan square 45 =?

Answer 1

Answer:

1-tan2 45/1+tan2 45. (Since tan 45=1)

1-1/1+1

0/2=0

Answer 2

= {1 - tan^2 (45°)} / {1 + tan^2 (45°)}

= {1 - (1)^2} / { 1 + (1)^2}

= {0} / {2}

= 0

Answer will be = 0

I hope it will helps u ...........