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Posts tagged with mathematicians

Mathematicians talk about their passions

November3
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Who said…

March29

This person insists that only two things could have persuaded him to abandon his decades-long mission; if his wife ever wanted him to stop or if his mathematics were proved incorrect. “Thankfully, Vanessa never did want me to quit and she has been an incredible support throughout,” he says. “She is just as crazy as […]

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Mirror, mirror on the wall…who is the greatest mathematician of all?

May19

Now that is a loaded question! After all, how do you compare such great minds? For example, Euler was perhaps the most published mathematician with about 900 books to his name. His most famous formula, eiπ + 1 = 0 where e is the mathematical constant and i is the square root of minus one, is considered by many to […]

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Post Support

The graph on the left (Coronavirus) is for a time period of 30 days, while the one on the right (SARS) is for 8 months! Very poor graphical comparison and hardly relevant, unless it is attempting to downplay the seriousness of the coronavirus?

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)?]

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