Over a million students use our free study notes to help them with their homework
First we should try and factorise the polynomial the brackets will be (x+?) and (x-?) as the coefficient of x and the -21 have differing signs.just thinking of the factors of 21 we can see that 7-3 = 4 th...
The formula axb = |a||b|sinθ is given in the formula bookletTherefore, θ, the angle between both vectors a and ...
From previous question y=2(x+2)2-1Minimum would be when (x+2)2 is at it's smallest value, in this case when (x+2)=0 since any other value squared would be greater than 0. This occurs...
2x2+8x+7=2(x2+4)+7=2((x+2)2-4)+7=2(x+2)2-8+7=2(x+2)2-1A=2, B=2, C=-1
Start by drawing an example graph which contains stationary points, use this to explain what a stationary point is. Explain how we could manipulate the graph to identify these points (explaining different...
←
256
257
258
259
260
→
Internet Safety
Payment Security
Cyber
Essentials
