## Welcome to H3 Maths

Blog Support for Growing Mathematicians

## Posts tagged with Leibniz

### Calculus = Pebbles!

March13

To bring together the last posts on Calculus you should watch this excellent 3 minute video which sums up what Calculus is all about, while bringing together our Maths friends, Newton and Leibniz:

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### Calculus – the Brains Trust

March13

Yes, before we get into the Calculus intro, you will no doubt be thrilled to learn that the two egg-heads below were largely responsible for Calculus. Click on each for links to their bios.  Images from “The Birth of Calculus” on youtube For an even better understanding of the importance of the two gents above, […]

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#### Post Support

10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]