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What is an easy way to remember how sin(x) and cos(x) are differentiated and integrated?

If you imagine that sin(x), cos(x), -sin(x) and -cos(x) are on a wheel as shown below: sin(x) -cos(x) cos(x) -sin(x) then going clockwise around the wheel you have what each term differentiates to, so sin(x)...
HE
Answered by Hannah E. • Maths tutor
18708 Views

What is the difference between Ionic and Covalent bonding

Covalent bonds are formed when two atoms share one or more pairs of electrons. These atoms are non-metals, such as Carbon, Oxygen and Hydrogen. Ionic bonds are formed when an atom gives one or more electrons...
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Answered by Theo N. • Chemistry tutor
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Essere o Avere? Which auxiliary verb must I use?

Ah! the famous auxiliary verbs. Here is a handy guide - You use "avere" with ACTIVE TRANSITIVE verbs. Here is an example Io HO mangiato - I have eaten. The verb "eaten" describes an actio...
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Answered by Giusy U. • Italian tutor
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What is the difference between Positivist and Interpretivist?

Positivism and Interpretivism are two very important, and very different approaches to sociological research and study. Here are some key features of these two positions, which highlight the fundamental diff...
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Answered by Evan J. • Sociology tutor
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It is given f(x)=(19x-2)/((5-x)(1+6x)) can be expressed A/(5-x)+B/(1+6x) where A and B are integers. i) Find A and B ii) Show the integral of this from 0 to 4 = Kln5

Firstly, we are given that f(x) can be expressed in the above form, so we write this out: (19x-2)/((5-x)(1+6x)=A/(5-x)+B/(1+6x) We then multiply by the denominator of f(x): 19x-2=A(1+6x)+B(5-x) Now we can ch...
MW
Answered by Mike W. • Maths tutor
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