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agh, trig integrals are driving me nuts.
1. Homework Statement
the integral of
tanx sec^4x dx
2. Homework Equations
3. The Attempt at a Solution
tanx sec^4x dx
= sec^3 tanx secx dx
u = secx
du = tanx secx dx
so,
= u^3 du
= (u/4)^4
= (1/4)sec^4x
1. Homework Statement
the integral of
tanx sec^4x dx
2. Homework Equations
3. The Attempt at a Solution
tanx sec^4x dx
= sec^3 tanx secx dx
u = secx
du = tanx secx dx
so,
= u^3 du
= (u/4)^4
= (1/4)sec^4x