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Find dy/dx of y=e^xcosx

Use product rule i.e. (uv)'=u'v+uv'Set u=e^x and differentiate to find u'=e^x Set v=cosx and differentiate to find v'=-sinxTherefore (uv)' where uv=e^xcosx =e^xcosx + e^x(-sinx)=e^xcosx - e^xsinx=e^x(cosx -s...
HB
Answered by Henry B. • Maths tutor
5872 Views

Evaluate the contribution of functionalist sociologists to our understanding of the role of the education system in society.

Functionalist sociologists see the education system as a vital social institution in modern society. They argue that the education system exists to perform a range of essential functions for individuals, for...
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Answered by Anjali S. • Sociology tutor
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I already done this.

I already done this.
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Answered by Ihar D. • Maths tutor
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Sort the following compounds in order of increasing boiling point and explain your reasoning: hydrogen, hydrogen fluoride and hydrogen bromide

Order: hydrogen fluoride > hydrogen bromide > hydrogen.Hydrogen fluoride contains a hydrogen atom bonded directly to a fluorine atom. The fluorine is highly electronegative and so pulls the bonding ele...
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Answered by Alex M. • Chemistry tutor
5730 Views

How to analyses an unseen prose text?

First, you need to relax and stay calm which might seem difficult in an exam situation but remember when the author this piece it is unlikely they wrote it for student sitting in an exam hall. Then simply re...
KW
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