physics

1.∫ x³(x+1)dx
2.∫ (1-cot²x)dx
3.∫ cosx(tan x + sec x) dx
4.∫ dx/√5x+8 using u= 5x+8 and using u= √5x+5

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asked by karan
  1. Hey, I told you how to do these yesterday except number 4 which is incomprehensible without adding parentheses and telling me what is u and what is du. Come on, we are volunteers here.

    integral x^4 dx = (1/5) x^5 + c
    integral 1 dx = x + c
    sum = (1/5) x^5 + x + c

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    posted by Damon

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