Question

prove : sin^2+cons^2/sec= cos

Answer 1

do you know Pythagorean identity ??/
\[\sin ^{2} + \cos ^{1} = ???\]
let me know please :)

Answer 2

sorry that cos^2

Answer 3

yes

Answer 4

so so replace that by their value :)

Answer 5

would you like to tell me sin^2 + cos ^2 = ???

Answer 6

cos

Answer 7

its equal to one

Answer 8

yes i get that lol the indentities

Answer 9

according to the Pythagorean identity i replaced sin^2 + cos^2 = 1