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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.
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Answered by Michael B. • Maths tutor
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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(sin 5 (x)) = 5sin 4 (x)cos(x). this looks similar to the integral we were asked to solve, apart fro...
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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
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Answered by Elena M. • Chemistry tutor
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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 + 4y) +8y = 3...
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Answered by Bradleey C. • Maths tutor
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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 is subjective or uncertain .There a...
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Answered by Beth B. • French tutor
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