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Expanding a quadratic equation (x-3)(x-2)=0

Focus on the left hand side of the equation: (x-3)(x-2) These are two factors, basically that (x-3) is a number, and (x-2) is another number. (x-2)(x-3) is just showing that you're multiplying these numbe...

DW
Answered by Daniel W. Maths tutor
5966 Views

When do I use Sin, Cos and Tan?

Just remember SOH,CAH,TOA. It sounds like Sock-A-Toe-Ah. Quite strange but extremely effective. SOH means Sin=Opposite/Hypotenuse Cos=Adjacent/Hypotenuse Tan=Opposite/Adjacent The three letters in each ab...

DC
Answered by Darren C. Maths tutor
3292 Views

Can you explain the product rule when differentiating?

When differentiating the product of two functions, we need to use the product rule. The theory of it is: (fg(x))'=f'(x)g(x) + f(x)g'(x). This explanation is-differentiate the first function and leave the ...

DC
Answered by Darren C. Maths tutor
3371 Views

Make x the subject of the equation: 5x+1 = 2-4x

fist of all you rearrange the equation so you have the x in one side so the equation would look like this: 5x+4x = 1, then you add up the x´s and divide both sides by 9 so the solution would be x= 1/9

DA
Answered by Daniel A. Maths tutor
3635 Views

Find the x-Coordinate of the minimum point of the function: f(x) = x^2 + 2x - 5

One of the easiest ways to find a minimum/ maximum point is using differentiation.

The derivative of the function f(x) is usually written as dy/dx or f'(x) and is essentially a function that tells ...

SM
Answered by Sachin M. Maths tutor
13097 Views

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