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How much time should I spend planning an essay in an exam?

As a general rule, longer than you think! Planning is often overlooked but it is essential for consistent, high-level answers: perfect your planning and you'll be set to give your best possible answer. Fo...

JW
Answered by James W. History tutor
11175 Views

The curve C has the equation: 2(x^2)y + 2x + 4y – cos (πy) = 17 use implicit differentiation to find dy/dx in terms of x and y

Using the product rule: d/dx(ab)=ab’ + a’b where a and b are variables which have been differentiated with respect to x

Derivative: 2(x^2(dy/dx)+2xy) + 2 + 4dy/dx+πsin(πy)...

GG
Answered by George G. Maths tutor
6529 Views

Solve the following inequality and shade the region to which it applies on a graph. 10x(squared) < 64x - 24

Step 1: Simplify the quadratic by dividing by 2. 5x2 < 32x - 12 Step 2: Move all terms onto one side of the quadratic. 5x2 - 32x + 12 < 0 Step 3: Factorise the quadratic. (5x -...

TS
Answered by Thomas S. Maths tutor
3907 Views

In one second a mass of 210 kg of air enters at A. The speed of this mass of air increases by 570 m s–1 as it passes through the engine. Calculate the force that the air exerts on the engine.

F = M x A (A= (V-U)/T) F = 210 x 570 F = 119,700 N

SG
Answered by Sam G. Physics tutor
3890 Views

June 2008 C1 Paper Differentiation Question

a) ask student: purpose of differentiation (i), how to perform differentiation (ii) (i) to find the gradient of a curve (ii) multiply the coefficient of x by its indice then minus one from the indici perf...

NG
Answered by Nicola G. Maths tutor
3378 Views

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