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Integrate the following by parts integral (lnx) dx

formula= fg-integral(f'g)So we have:xln(x)-x+C
Answered by • Maths tutor
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How many centimeters are there in 6.8 meters?

6.8 = 680 centimetres 1 meter = 100 centimeters 6x100 = 6000.8 meters = 80 centimeters 600 + 80 = 680 centimeters
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Answered by Arthur N. • Maths tutor
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How to find domains satisfying quadratic inequalities?

When you have a quadratic inequality the first step is to factorize it as if trying to solve a quadratic equation. If the equation is not easy to factorize, then complete the square or use the quadratic form...
MM
Answered by Marianna M. • Maths tutor
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√ 5(√ 8 + √ 2) Can be written as "a√ 10". What is the value of a?

First expand the given expression √ 5(√ 8+√ 2) = √ 40 + √ 10 Now get it in the format where it has √ 10 in it. √ 40 + √ 10 = √ 4√ 10 + √ 1√ 10 and simplify this as you would in algebra by collecting like ter...
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Answered by Priya T. • Maths tutor
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Work out the point at which the line y = x^2 + 4x + 4 hits the y-axis and the x value of its turning point.

To work out the point at which the line hits the y axis, we need to know where x = 0. In order to do this, we need to set x = 0, and so we are left with x = 4. To find the turning point, we need to different...
EC
Answered by Ethan C. • Maths tutor
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