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Find the x co-ordinates where the curve y=x+1 and y= x^2 +1 cross?

As they both equal y these 2 terms can be equated to each other.x+1 = x^2+1We can re-arrange this new equation, and solve for x.This equals: 0 = x^2 - xsolve for x:0 = x(x-1)so x = 1, 0.

MB
Answered by Michael B. Maths tutor
2669 Views

Find the integral of: sin^4(x)*cos(x)dx

This is a standard integral of the type f'(x)*f(x)n. To find the solution, we trial d/dx(f(x)n+1). d/dx(sin5(x)) = 5sin4(x)cos(x). this looks similar to the int...

Answered by Maths tutor
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What are the properties of ionic compounds?

Crystalline solids at rtphigh mp and bpoften soluble in waterconduct electricity when dissolved in water or molten

EM
Answered by Elena M. Chemistry tutor
1805 Views

Solve the Simultaneous Equation: 7x + 8y = 32, x - 4y = 8

7x + 8y = 32 (let this be equation [1])x - 4y = 8 (let this be equation [2])
Make x the subject in equation [2] => x = 8 +4y (let this be equation [3])Sub [3] into [1]
7x + 8y = 32 => 7(8 ...

BC
Answered by Bradleey C. Maths tutor
3867 Views

When do I use the subjunctive mood in French?

The subjunctive mood is used when expressing needs, desires, preferences, emotions, possibilities, opinions and suppositions. Putting it simply, it is used when something...

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Answered by Beth B. French tutor
1150 Views

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