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How do you go about differentiating a^x functions?

A key point to remember here is that a^x could mean the base (a) is not “e”-that special number which has a gradient function, dy/dx (the differential), EQUAL to the function itself, y=e^x. When "a&quot...
AW
Answered by Adam W. Maths tutor
83009 Views

How do I differentiate 3^2x?

By recalling that e ln(a) = a, you can rewrite 3 2x as e 2xln(3) . Then, you can differentiate this like any other e function, by using the product rule. d/dx (e 2xln(3) ) = e 2xln(3) x d/dx (2xln(3)) d/dx (...
LD
Answered by Luis D. Maths tutor
26428 Views

How is trigonometry used on non-right angled triangles?

To do this, there are two rules, the Sine Rule and The Cosine Rule. The sine rule is a/Sin A = b/Sin B = c/Sin C. (the lower and uppercase are very important. The rule also stands if you write the entire thi...
BC
Answered by Bobbie C. Maths tutor
119117 Views

Factorise and solve x^2 - 8x + 15 = 0.

The easiest way to solve this problems it via trial and error. For any quatdratic (a x 2 + bx + C = 0) , the coeficcent of x, (in this case b = 8) is the sum(+) of the two solutions and c is the product( ). ...
DM
Answered by Dominic M. Maths tutor
5726 Views

How do you find the area between two lines?

First, find the x coordinates of where the lines intersect by setting the equations of the lines equal to each other. Then solve the quadratic (or polynomial) equation. Next, integrate both lines individuall...
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Answered by Rory P. Maths tutor
12332 Views