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Solve 3x² + 6x – 2 = 0. Give your solutions correct to 2 decimal places [calculator paper]

We have a quadratic equation since the highest power of x is 2. Therefore, we can use the quadratic formula, which we recall to be: x = [- b ± √(b² - 4ac) ] / 2a In accordance with the formula, we set a =...

Answered by Tutor90708 D. Maths tutor
6868 Views

What is differentiation and how is it used?

Differentiation is a branch of calculus mathematics used to determine the rate of change between certain variables. For example if an object changes its distance x over a certain time interval t, we can u...

Answered by Alper B. Maths tutor
2669 Views

How do you calculate a^5 x a^16 / a^4?

When each term has the same base, add the indices that are multiplied. Then subtract the indices that are divided.

a^5 x a^16 / a^ 4 = a^(5+16) / a^4 

                            = a^ 21 / a...

Answered by Elliot P. Maths tutor
3172 Views

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Answered by Peter H. Maths tutor
3843 Views

Prove 2^n >n for all n belonging to the set of natural numbers

for n=1 2^1=2  2>1 hence true for n=1 assume true for n then 2^n >n we need to show 2^n+1 > n+1 since 2^n >n 2^n+1 >2n =n+n >n+1 for n>1 hence by induction since true for n= 1 and if ...

Answered by Matthew M. Maths tutor
3104 Views

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