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Integrate the function 1/sqrt(9-x^2) with respect to x

Hint: Use the substitution x = 3sin(u)Method: substitute u into the function then times it all by dx/du. Simplify and integrate with respect to u to get u. Then resubstitute x back into the equation to get:A...
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Answered by Luke G. • Maths tutor
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Given two coordinate points (a1,b1) and (a2,b2), how do I find the equation of the straight line between them?

Firstly, remember that we can write such a line in the form y = mx + c, where x and y are our two axes, m is the gradient of the line, and c is the y-axis intersection point. Given this general formula, we n...
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Answered by Lewis H. • Maths tutor
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Question 6 from Aqa 2017 June paper for C4, the vector question

Solution for a) and b) via the link: https://imgur.com/a/ESjeeLJSolution for c) and d) via the link: https://imgur.com/a/1ZmbQdc
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Answered by Tutor131357 D. • Maths tutor
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who were the greek gods?

The Olympian Gods were figures from Greek mythology who had their own personal stories and attributes- the Greeks loved to tell stories of the relationships amongst the Gods and their meddling with humans . ...
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What is a limit?

In mathematics, the limit of a function is the value, towards which a function tends, as the independent variable of the given function gets closer and closer to some number. In other words, take our functio...
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Answered by Martin S. • Maths tutor
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