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Differentiate y = e^(2x)cos(3x)

Using both the Chain Rule and the Product Rule for derivatives, we find the answer to be: dy/dx = e^(2x)[2cos(3x) - 3sin(3x)]
JC
Answered by Jesse C. • Maths tutor
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Square root of 81?

9X9 = 81
LH
Answered by Laura H. • Maths tutor
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Work out 1 1/5 ÷ 3/4. Give your answer as a mixed number in its simplest form.

Because we have been given a mixed number, we can start by turning it into an improper fractions. An improper fraction is where the numerator is bigger than the denominator. To turn 1 and 1/5 into an imprope...
GH
Answered by Georgia H. • Maths tutor
35294 Views

How do you find the intersection of a straight line and a curve?

Question : You have been given the following straight line equation --> y = 2x + 3 and the equation for a curve --> y = x 2 + 3x + 1. At the point(s) where these lines intersect we know that the coordi...
MO
Answered by Manon O. • Maths tutor
5608 Views

How do I think of coordinates of a point?

Firstly you draw your x and y axis. The x-axis is the horizontal line and the y-axis is the vertical line. The coordinates of a point help you understand its location from the centre, which on the x and y ax...
MC
Answered by Margarita C. • Maths tutor
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