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How do I solve a quadratic equation?

To solve a quadratic equation we need to find the value of x for which a x 2 +b x+c=0,where a,b,c are constants.There are some well known formulas which you should get accustomed with.However,in this answer,...
MG
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Differentiate: y = xsin(x)

This is a function which is in the form, y = f(x)g(x) It's the product of two functions and so we must make use of the product rule . This is a simple formula which you have to remember: dy/dx = f'(x)g(x) + ...
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Answered by Oliver R. Maths tutor
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Differentiate x^2

To differentiate x^2 Step 1) whatever the number on the power, put that in front of x. Step 2) Then minus one (-1) from the power Therefore, by putting the number on the power in front (which is 2) and deduc...
AM
Answered by Anjana M. Maths tutor
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Integrate (x^3 - x^2 - 5x + 7) with respect to x.

Remember to integrate you +1 to the power and divide by the new power:(x 3+1 /3+1) - (x 2+1 /2+1) - 5(x 1+1 /1+1) + 7(x 0+1 /0+1) + CDONT FORGET YOUR CONSTANTx 4 /4 - x 3 /3 - 5x 2 /2 + 7x + C
NL
Answered by Nathan L. Maths tutor
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How should I aproach a connected rates of change question.

You should start by identifying which parts have a fixed rate of change e.g. water is being poured in at 50 cm^3/s. You should then identify what is changing in relation to this e.g the height of fluid in a ...
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Answered by Kyle C. Maths tutor
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