Question

Find the value of 1/ cos2
θ-
tan2θ​

Answer 1

Answer:

1

Step-by-step explanation:

To solve this, you must know the trigonometric identities.

1+$tan^{2}$Θ=$sec^{2}$Θ

We know that $\frac{1}{cos^{2} }$=$sec^{2}$Θ

Therefore,

$sec^{2}$Θ-$tan^{2}$Θ=1 by substituition and tranposition.

Hope this clears your doubt.