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Maths
GCSE

Prove that √2 is irrational

Begin by assuming that √2 is rational, and can therefore be written as √2 = p\q where p and q are coprime integers.By squaring both sides, you get the result 2 = p2\q2, which rearran...

Answered by Anika S. Maths tutor
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Differentiate y = e^(2x)cos(3x)

Using both the Chain Rule and the Product Rule for derivatives, we find the answer to be: dy/dx = e^(2x)[2cos(3x) - 3sin(3x)]

Answered by Jesse C. Maths tutor
5964 Views

Square root of 81?

9X9 = 81

Answered by Laura H. Maths tutor
2800 Views

Work out 1 1/5 ÷ 3/4. Give your answer as a mixed number in its simplest form.

Because we have been given a mixed number, we can start by turning it into an improper fractions. An improper fraction is where the numerator is bigger than the denominator. To turn 1 and 1/5 into an impr...

Answered by Georgia H. Maths tutor
25684 Views

How do you find the intersection of a straight line and a curve?

Question : You have been given the following straight line equation --> y = 2x + 3 and the equation for a curve --> y = x2 + 3x + 1.
At the point(s) where these lines intersect we kn...

Answered by Manon O. Maths tutor
3689 Views

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