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3y^2 + 10y + 3

3y 2 + 10y + 33y 2 = 3 * 1(3y + n) * (y + r)n * r = 3 hence to try whole numbers first n = 1 or 3 meaning r = 3 or 1 respectivey * n + 3y * r = 10yif n =1 and r = 3 then equivalent is 10y (correct)as all val...
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Answered by Jack h. • Maths tutor
3962 Views

Curve C has equation 4x^2- y^3 - 4xy +2^y = 0 , point P (-2, 4) lies on C, find dy/dx at the point P

Use implicit differentiation 1) 8x - 3y^2 dy/dx - 4y - 4x dy/dx +2^y*ln2 * dy/dx = 0 You then sub in the points P (-2,4) 2) 8(-2) - 3(4)^2 *dy/dx - 4(4) - 4(-2) *dy/dx + 2^(4) *ln2 * dy/dx = 0 Rearrange to g...
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Answered by Fernando F. • Maths tutor
4197 Views

n is an integer such that 3n+2<14 and 6n > n2 +5. Find all the values of n.

n &gt; 1, n &lt;4.rearrange equations.use the quadratic formula to solve the second equation. look at the boundaries set and formalise which are the answer.
EL
Answered by Emily L. • Maths tutor
4303 Views

What is greater e^pi or pi^e?

Let a^b &gt;b^a, then blna&gt;alnb, (lna)/a &gt; (lnb)/b, Thus we graph the function (lnx)/x, We can see that this tends towards 0 as x tends towards infinity. We can also see that it is increasing from x=0 ...
Answered by • Maths tutor
3956 Views

What is integration?

when integrating a function which describes a certain curve, the answer we get gives us the area under the curve. When integrating a general polynomial you simply add 1 to the power and divide by the new pow...
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Answered by Jacob G. • Maths tutor
3549 Views