Flashcards
2021-10-27
If you’re worried about how a $\pm$ has cropped up, how can you sometimes safely only consider it as negative or as positive??
By looking about what is true in a sketch.
$$x^5 = 2$$ What is $x$ using fractional exponents??
$$ x = 2^{\frac{1}{5}} $$
$$x^{-4} = 6$$ What is $x$ using fractional exponents??
$$ x = 6^{-\frac{1}{4}} $$
$$x^{\frac{3}{2}} = 4$$ What is $x$ using fractional exponents??
$$ x = 4^{\frac{2}{3}} $$
$$x^{\frac{a}{b}} = 7$$ What is $x$ using fractional exponents??
$$ x = 7^{\frac{b}{a}} $$
$$x^{\frac{3}{2}} = \frac{1}{4}$$ Solve for $x$??
$$ x = \frac{1}{4^{\frac{2}{3}}} $$
For $f(x)$ and $g(x)$ to touch, what two things must be true??
$$ f'(x) = g'(x) $$
$$ f(x) = g(x) $$
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date: 2021-10-27 15:53
summary: when do these parabolas only touch?
tags:
- '@?public'
- '@?mat'
- '@?notes'
- '@?maths'
title: MAT - Paper 2018 - Q1G