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Maths
A Level

Find the stationary point(s) on the curve 2xsin(x)

Derivative of 2xsin(x): 2sin(x)+2xcos(x)Set derivative equal to zero: 2sin(x)+2xcos(x)=0Solve: only valid when x=0Therefore the only stationary point is (0,0) ie the origin.

SO
Answered by Seyi O. Maths tutor
2826 Views

How do I find the co-ordinates and nature of the stationary points on a curve?

The stationary points on a curve are the exact point of a maximum, minimum or point of inflection. They can be defined as points where the gradient, dy/dx = 0. You can show this by drawing a tangent to th...

ML
Answered by Matthew L. Maths tutor
5424 Views

x = 3t - 4, y = 5 - (6/t), t > 0, find "dy/dx" in terms of t

2t-2

TJ
Answered by Tariq J. Maths tutor
7855 Views

Show that tan(x) + cot(x) = 2cosec(2x)

For this we have to use trignometric identities, e.g Tan(x)= sin(x)/cos(x), sin2(x) + cos2(x) = 1, 1/sin(x) = cosec(x)
ta...

MB
Answered by Moin B. Maths tutor
10200 Views

Why does the equation x^2+y^2=r^2 form a circle in the Cartesian plane?

The general line equation in the Cartesian plane is given by ax+by=c, where a, b, and c are given constants. This means that all (x_0, y_0) points that are situated on the line s...

BS
Answered by Bálint S. Maths tutor
8819 Views

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