Question

(sin^2x/cosx)+cosx

Answer 1

sin^2(x)/cos(x) + cos(x)
= sin^2(x)/cos(x) + (cos(x) * cos(x)/cos(x))
= sin^2(x)/cos(x) + cos^2 (x)/cos(x)
= (sin^2(x) + cos^2 (x))/cos(x)
remember the identity sin^2(x) + cos^2 (x) = 1
so, it is 1/cos(x), and actually it called sec(x)

Answer 2

Thank you!

Answer 3

cotx secx