Question

1-tan2 45°/1+ tan2 45° is equal to

Answer 1

= 1 - tan^2(45) / 1+ tan^2(45)

= tan45 = 1

= 1 - 1 / 1 + 1

= 0

Answer 2

You might be referring to this question $\frac{1 - tan^{2}45 }{1 + tan^{2}45 }$

To find :

The value of the given trigonometric function .

solution :

              = $\frac{1 - tan^{2}45 }{1 + tan^{2}45 }$

 As we know ,

value of tan45 = 1

Hence , substituting

              = $\frac{1 - (1)^{2} }{1 + (1)^{2} }$

              = 0

             

Final answer :

Hence , the value of trigonometric function is 0 .