Question

cos^2 x(sec^2 x-I)

Answer 1

cos^2 x(sec^2 x-I)
=(cos^2 x)(1/cos^2 x -1)
=1-cos^2 x
=sin^2 x

Answer 2

x-1 is with sec ?is it angel ?

Answer 3

sec^2x-1=tan^2x

Answer 4

tan^2 x=sin^2 x/cos^2 x

Answer 5

are u under standing?

Answer 6

cos^2 x*sin^2 x/cos^2 x
=sin^2 x ans

Answer 7

yes i understand thank u!

Answer 8

welcome

Answer 9

.sec^4x-tan^4

Answer 10

sec^4x-tan^4x