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How do I find the inverse of a function?

To find the inverse of a function you need to rearrange from y= a function in terms of x to x= a function in terms of y and then when you write your answer it's important to set it in the form f^-1(x)= a fun...
NH
Answered by Natalie H. • Maths tutor
3658 Views

Prove that 2 cot (2x) + tan(x) == cot (x)

(1) Aim to rearrange the right hand side (rhs) to make it look like the left hand side.LHS = 2 cot (2x) + tan (x)(2) Notice that the rhs is only in terms of x, whereas the right has a function involving 2x. ...
JC
Answered by Joseph C. • Maths tutor
12724 Views

The rate of decay of the mass is modelled by the differential equation dx/dt = -(5/2)x. Given that x = 60 when t = 0, solve the quation for x in terms of t.

(1) Rearrange the equation so that the left hand side is a function of x, and the right hand side is a function of t only.dx/dt = - (5/2) x(1/x)dx = -(5/2)dt(2) Integrate both sidesln(x/A) = -(5/2)t, where A...
JC
Answered by Joseph C. • Maths tutor
6809 Views

How should I approach analysing an unseen poem in an exam?

Having to write a whole essay on a poem you've never seen before can seem daunting, particularly as you only have five to ten minutes to read and understand it as well as planning your answer. However, the f...
EC
4213 Views

Present the aims of a political or environmental movement in Modern Standard Arabic

موضوعنا هو ما يسمى بالإنجليزية 'ريوايلدينغ' العملية التي تهدف إلى إعادة الطبيعة أو أجزاء من العالم الطبيعي إلى حالة ما كانت عليها قبل تاريخ. وقد أثارت الحركة جدلاً واسع النطاق لا سيما في أوروبا لسبب بسيط وذل...
JB
Answered by Jacob B. • Arabic tutor
1769 Views