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How do you calculate the angle between two vectors?

The formula a x b = | a || b |sinθ is given in the formula bookletTherefore, θ, the angle between both vectors a and b is equal to sin -1 (( a x b )/(| a || b |))Remember, a x b can be found by multiplying a...
GT
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Using answer to previous question state the coordinates of the minimum

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 when x=-2, and y at t...
MC
Answered by Matilda C. • Maths tutor
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Express 2x^2 +8x +7 in the form A(x+B)^2 + C, where A, B and C are constants

2x 2 +8x+7=2(x 2 +4)+7=2((x+2) 2 -4)+7=2(x+2) 2 -8+7=2(x+2) 2 -1 A=2, B=2, C=-1
MC
Answered by Matilda C. • Maths tutor
9567 Views

How do you find the stationary points of a graph?

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 differentiat...
HL
Answered by Harrison L. • Maths tutor
3405 Views

How do you sketch the graph of a function?

To sketch a graph, you can follow the steps below, spiking some of them if not needed or not applicable:0 Clean up the function (makes following steps easier).1 Determine the maximum domain of definition of ...
TD
Answered by Tudor D. • Maths tutor
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