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How do I know when to use sine, cos or tan when working with right angled triangles?

When dealing with right angled triangles, you just need to remember 'SOHCAHTOA'. If you struggle to remember this, you may find it easier to recall:'Some Of H

JG
Answered by Jonny G. • Maths tutor
2365 Views

A curve has equation y = x^3 - 48x. The point A on the curve has x coordinate -4. The point B on the curve has x coordinate - 4 + h. Show that that the gradient of the line AB is h^2 - 12h.

First, let's recall the gradient formula:grad = change in y / change in x = y2 -y1 / x2 - x1So let's label point A as x1, and point B as x2, and find the corresponding y1 and y2 using the equation of the ...

OW
Answered by Oliver W. • Maths tutor
5976 Views

What is the difference between 'ser' and 'estar'? ¿Cuál es la diferencia entre 'ser' y 'estar'?

The difference between 'ser' and 'estar' is mainly whether you are describing something permanent. If I were to say that 'I have blue eyes', then I would use 'ser', as this is something that canno...

TD
1377 Views

How should I structure a paragraph?

Start with what's called a topic sentence- it says "Hello, this paragraph is about this". Then, you can add evidence, and analysis. Think about using the paragraph structure P, E, E:Point- this ...

AL
Answered by Alexandra L. • History tutor
1849 Views

Given the equation x^3-12x^2+ax-48=0 has roots p, 2p and 3p, find p and a.

QUESTION: Given the equation x3-12x2+ax-48 = 0 has roots p, 2p and 3p, find p and a. Roots mean x = p, x = 2p and x = 3p hence (x-p), (x-2p) and (x-3p) are factors of the equation. E...

MD
2863 Views

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