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How to determine the number of unique real roots of a quadratic equation.

Take any quadratic equation, eg/ 3x2+4x-2=5, and rearrange to equal 0, ie/ 3x2+4x-7=0  ...

YP
Answered by Yaniv P. • Maths tutor
21205 Views

Describe how blood vessels are able to assist in the control of body temperature.

If body temperature is too high:

Capillaries dilate, increasing the blood supply to the skin and allowing heat to be lost from the body by radiation.

 

If body temperature is t...

MW
Answered by Merrin W. • Biology tutor
3959 Views

How do I do a proof by induction?

For this explanation we will use the following example from a 2013 exam paper:

   If u1= 2 and un+1=(5un-3)/(3un-1), then prove that un

SC
4031 Views

How do I find the integral ∫(ln(x))^2dx ?

What is the force on a moving charged particle in a magnetic field, and why is no work done by this force when it accelerates the particle?

A particle with electric charge q, mass m and velocity v in a constant magnetic field B...

RP
Answered by Rich P. • Physics tutor
12352 Views

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