(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

use substitution to evaluate the integral

2. Relevant equations

1)∫ tan(4x+2)dx

2)∫3(sin x)^-2 dx

3. The attempt at a solution

1) u= 4x+2 du= 4

(1/4)∫4 tan(4x+2) dx

∫(1/4)tan(4x+2)(4dx)

∫ (1/4) tanu du

(1/4)ln ltan(u)l +c

2) u=sinx du= cosx or u=x du = 1 ????

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: U substitution with trig

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