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# Methods of Integration | IntMath forum

• Re: Direct Integration, i.e., Integration without using 'u' substitution [Solved!]
Right, after we differentiated our solutions, we arrived at the original integrands. Which is...
• Integration by Parts [Solved!]
When using IBP, is the rule to simplify ‘v times du’ FIRST and then integrate...
• Decomposing Fractions [Solved!]
In decomposing the fraction of Chapter 11 Integration example 3 b, we are trying to...
• Partial Fraction [Solved!]
In example 4, the numerator in the next-to-last step is (1/2)x + 1. How did you...
How is the sine of sixty degrees a negative number in radians?
• Integration Techniques [Solved!]
You state in Section four that all angles are in radians and that the formulas...
• Taking e to both sides [Solved!]
Your Integration Chapter: The Basic Logarithmic Form, example 4. Can you show how you took e...
• integration by trig substitution [Solved!]
Chapter 8:Integration by Trig Sub. Exercise 1: In the third step down the constant...
• Find integral sqrt (x^2 + 1) using trigonometric substitution [Solved!]
Find int sqrt (x^2 + 1) dx with limits of integration from 0 to...
• Re: Integral help please [Solved!]
Of course! int 1/(x^4+1)dx  =1/(4sqrt(2)) int(x + sqrt(2))/(x^2+1+xsqrt(2))dx + 1/(4sqrt(2)) int(-x + sqrt(2))/((x^2+1-xsqrt(2)))dx =1/(4sqrt(2))[ ln(x^2+1+xsqrt(2)):} ...

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