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Can you differentiate the following function using two methods:- y = e^(2x+1)

The first method to differentiate this fuction is the basic chain rule method. differentiate 2x+1 and add this to the front of the function. This gives us 2e^(2x+1). the other method to differentiate this fu...
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Answered by Rajenth N. • Maths tutor
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Core 3 - Modulus: Solve the equation |x-2|=|x+6|.

Modulus , also known as absolute value , takes whatever's between the | straight brackets | and makes it positive. For example, |3|=3, and | - 3|=3. Interestingly, if you have any real number x , then | x |=...
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Answered by Michael F. • Maths tutor
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Using Trigonometric Identities prove that [(tan^2x)(cosecx)]/sinx=sec^2x

You should begin by identifying all the Trigonometric Identities that may be useful in this problem. Specifically, cosecx=1/sinx tanx=sinx/cosx 1/cosx=secx and possibly tan^2x + 1= sec^2x. I began by changin...
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Answered by Mary B. • Maths tutor
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Find the equation of the tangent to the curve y=x^3-4x^2+2 at the point (3,-7)

y=x 3 -4x 2 +2A tangent to a curve at a specific point along the line will have excatly the same gradient as the curve at that point. For example if the point was (0,0) the tangent would just be a horizontal...
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Answered by Daniel W. • Maths tutor
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How to get A and A* in Maths?

It may sound cliched - however to get the highest marks in Maths at A levels means going beyond your exam board! Do not just rely on the past paper questions from your exam board but try a few papers from th...
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Answered by Arth D. • Maths tutor
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