Question

find the value of sec^2 - 1/ cot^2a​

Answer 1

Step-by-step explanation:

sec^2-1/cot^2a

we know that sec^2a-1 = tan^2a

replace it with tan

tan^2a/cot^2a

sin^2a/cos^2a whole divide by cos^2a/ sin^2a

then it comes sin^a/cos^2a×sin^2a/cos^2a

Answer 2

YOUR QUESTION :----

${ \sec}^{2} - \frac{1}{ { \cot}^{2} a}$

And Your Answer is :---

$( { \sec }^{2} = \frac{1}{ { \cos }^{2} } )$

$( { \cot }^{2} = \frac{ { \sin }^{2} }{ { \cos }^{2} } )$

$\frac{1}{ { \cos }^{2} } - \frac{ { \sin }^{2} }{ { \cos }^{2} }$

$\frac{1 - { \ \sin }^{2} }{ { \cos}^{2} }$

$\frac{ { \cos}^{2} }{ { \cos }^{2} }$$= 1 \: is \: the \: answer$