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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 c...

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=x³-4x²+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...

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 f...

Answered by Arth D. • Maths tutor

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The graph with equation y= x^3 - 6x^2 + 11x - 6 intersects the x axis at 1, find the other 2 points at which the graph intersects the x axis

the equation: x³- 6x²+ 11x -6

Becasuse it intersects at the x axis, y=0 so we set the equation equal to 0. x³- 6x²+ 11x -6 =0

Answered by Jestin J. • Maths tutor

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How do I do implicit differentiation?

The main thing to remember with implicit differentiation is to differentiate each thing as you see it. Don't worry about rearranging the equation until you have differentiated everything first. Say you...

Answered by Thomas H. • Maths tutor

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