Recent content by capt. crunch

  1. C

    Having big problem with integration work (1st year tertiary level)

    Thanks, so if I use what you gave above, how do i treat the sin7x? i thought i had to reduce that with the reduction equations?
  2. C

    Having big problem with integration work (1st year tertiary level)

    for a 2nd question: \intsin^7xcos^3xdx i worked it down to the following using reduction eqn and also substitution: = - cos^4x/40 -1/10 sin^6xcos^4x - 3/40 sin^4xcos^4x - 1/20sin^2xcos^4x + c should I simplify this further and where should i begin if i do?
  3. C

    Having big problem with integration work (1st year tertiary level)

    I am currently working on revision and the following question came up: Find the integral of: \int x^2 \sqrt{x-5}dx now the way I went about solving this was to let u = x-5 and du = dx so that for the first step i got: \int x^2 U^1/2 du. I felt wrong right from the get go and had a look at...
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