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Maths
A Level

What is the indefinite integral of cos^2x?

List Trigonmetric identities which could help to simpilfy integral

Use cos(2x)= Cos2x-sin2x and sin2x=1-cos2x

Sub identity 2 into 1 and rearrange ...

JM
Answered by Jake M. • Maths tutor
3525 Views

Given y = x^3 + 4x + 1, find the value of dy/dx when x=3

To differentiate this equation, you must bring the power of each x term down to the front and reduce the power of x by 1, with constants disappearing:

dy/dx = 3x3-1 + (41)*x

FH
Answered by Florence H. • Maths tutor
10712 Views

How do one tailed and two tailed hypothesis tests differ

A one tailed test is when you are testing specifically for an increase or decrease- eg whether the probability of a person buying a product has INCREASED after a marketing change

A two tailed test ...

KG
Answered by Katie G. • Maths tutor
4564 Views

Find the maximum point of the curve from its given equation: [...]

Firstly you would have to differentiate the equation to find the expression that describes the rate of change of the parameters relative to each other using the standard differentiation method. This invol...

MS
Answered by Merry S. • Maths tutor
3565 Views

Let f(x) = 2x^3 + x^2 - 5x + c. Given that f(1) = 0 find the values of c.

In order to solve this question we simply must substitute x=1 into f(x). But what is f(x)? What does it actually mean to make a subsitution? f(x) has a fancy name attached to it called a funct...

ML
Answered by Michael L. • Maths tutor
10367 Views

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