# single variable calculus - indefinite integrals

posted by
**Kelly** on
.

integral of (1-(sinx)^2))/(cosx)dx

i don't know what to make my "u" for u-substitution

posted by
**Kelly** on
.

integral of (1-(sinx)^2))/(cosx)dx

i don't know what to make my "u" for u-substitution