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The parametric equations of a curve are: x = cos2θ y = sinθcosθ. Find the cartesian form of the equation.

x = cos2θ  y = sinθcosθcos2θ = cos2 θ  - sin2θ cos2 θ  + sin2θ  = 12cos2 θ  = 1 + cos2θ cos2 θ  = 1/2(1 + x)2sin2θ  = 1 - cos...

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Answered by Amelia N. Maths tutor
7824 Views

If a motor uses 500J to raise a box of 25N, how high has the box been lifted?

Work done = Force x distance the applied force has moved, hence 500 = 25d where d = unknown distance. Therefore the distance moved is 500/25 = 20m

OO
2160 Views

find dy/dx of x^1/2 + 4/(x^1/2) + 4

This can be rewritten as x1/2 + 4x-1/2+ 4, hence dy/dx = (1/2)x-1/2 - 2x-3/2

OO
Answered by Olufayojimi O. Maths tutor
3049 Views

A farmer has 30 boxes of eggs. There are 6 eggs in each box. Write, as a ratio, the number of eggs in two boxes to the total number of eggs. Give your answer in its simplest form.

The question asked for the ratio between the number of eggs in 2 boxes and the total number of eggs. From the question we know that the total number of eggs is the same as the number of eggs in 30 boxes. ...

OO
Answered by Olufayojimi O. Maths tutor
11592 Views

Can you explain the concept of the Price Elasticity of Demand?

The price elasticity of demand, also known as PED for short, is a measure of how responsive consumers of a product are to a change in price. In a competitive business market, its important for producer to...

JM
3797 Views

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