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Differentiate y=ln(ln(x)) with respect to x.

To solve this question we need to understand the process of implicit differentiation, which is a case of using the chain rule. If you remember the chain rule states that for y=f(g(x)), we have y'=f'(g(x))g'(...
MK
Answered by Marek K. • Maths tutor
5959 Views

What is 'e' and where does it come from?

Its called Euler's number but it can be said to be credited also to Bernoulli. Hopefully you are aware of interest on loans from banks, if not, proceed to have a look on Wiki. In short, when you borrow money...
OO
Answered by Oliver O. • Maths tutor
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How many people in a room is required such that the probability of any two people sharing a birthday is over 50 percent?

Probability can be highly intuitive yet at times completely nonsensical. Famous mathematicians have fallen victim to the idea that everything in probability can be done without rigorous calculation and thoug...
OO
Answered by Oliver O. • Maths tutor
4403 Views

Solve the simultaneous equations: 2x + y = 18, x - y = 6

There are two ways to solve simultaneous equations, by substitution or by addition/subtraction. The simplest solution in this case is a method of substitution: Rearrange the simplest equation to get only x o...
KT
Answered by Kieran T. • Maths tutor
6612 Views

The diagram shows a prism. The cross-section of the prism is an isosceles triangle. The lengths of the sides of the triangle are 13 cm, 13 cm and 10 cm. The perpendicular height of the triangle is 12 cm. The length of the prism is 8 cm. Work out the total

13 x 8 = 1048 x 10 = 800.5 x 10 x 12 = 60 SA = 104 + 104 + 80 + 60 + 60 SA = 408 cm2
RD
Answered by Rebecca D. • Maths tutor
11466 Views