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How can you remember what sin(x) and cos(x) differentiate or integrate to?

Calculus processes concering sin(x) and cos(x) can be imagined like turning a wheel (insert diagram here, would show in tutorial). Turning the wheel clockwise is the process of differentiating, turning the w...
ST
Answered by Sam T. • Maths tutor
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What is the difference between a scalar and a vector?

A scalar is a value that has only a size (otherwise known as magnitude), not a direction. A scalar is unaffected by the direction in which the object concerned is travelling. Examples include kinetic energy,...
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Answered by Sam T. • Physics tutor
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The polynomial p(x) is, p(x)= x3-5x2-8x+48.Use the Factor Theorem to show that (x + 3)is a factor of p(X)

First of all it is using the factor theorem. so need to use that to show it is a factor We do this by P of (-3) should = 0 So substitute x with -3 p(-3)= (-3)3 - 5 (-3)2- (-3)8 + 48 = 0 -27-45+24+48=0
MB
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How should I write an essay introduction, and is a conclusion just the same thing?

For IB English Literature, and indeed for all essay-based subjects at this level, an introduction is vital, as it sets out your aims and interests to the examiner while also providing insight into your metho...
BS
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Find the area R under the curve when f(x)=xcos(x) between the limits x=0 and x=2

After careful consideration, we can see the function f(x) is the product of two individual functions. Usually, to find the area under a curve we integrate its function between a set limit. Given our situatio...
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Answered by Abraar A. • Maths tutor
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