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Find the roots of the following equation 2x^2-11x+14=0

First start by copying down the question and making sure that you have copied all of the correct numbers. We then identify that it is a quadratic equation due to there being an x raised to a power 2 term....

JD
Answered by Jack D. Maths tutor
3015 Views

Simplify \sqrt{98} - \sqrt{32} giving your answer in the form k*sqrt{2} where k is an integer

Let's begin with the basics, before we begin we should be able to answer what is a surd? and What rules do we need?\begin{equation}...\end{equation}Answer: 3*sqrt{2}

CV
Answered by Corey V. Maths tutor
2668 Views

A triangle has the following dimensions: 5 km, 12 km and 13 m. Is it a right triangle?

Step one: convert all dimensions to the same units 1km = 1000m therefore 5km = 5000m12km = 12,000mStep two: recall that Pythagoras theorem is used for right angle triangl...

TS
Answered by Tayeba S. Maths tutor
3932 Views

How do I find the limit of a sequence that is expressed as a fraction?

There are a number of ways of looking at the limiting behaviour of a fraction. Let’s look at three examples:1) a(n) = 2n+1/7n —> divide into two separate terms, that both clearly converge. 2) b(n) = 2/...

ZS
Answered by Zayn S. Maths tutor
2868 Views

What is the chain rule?

The chain rule is a rule that is used when calculating the derivative of a function. If you have a function within a function, i.e. f(g(x)), then the derivative is calculated as follows: df/dx = (df/dg)

AK
Answered by Arjun K. Maths tutor
3015 Views

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