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Click the option on the left followed by your answer on the right
Scorecard
Correct
Incorrect
1
Invertendo
$$\dfrac{a}{b} = \dfrac{c}{d} \implies \dfrac{b}{a} = \dfrac{d}{c}$$
2
Alternendo
$$\dfrac{a}{b} = \dfrac{c}{d} \implies \dfrac{a}{c} = \dfrac{b}{d}$$
3
Componendo
$$\dfrac{a}{b} = \dfrac{c}{d} \implies \dfrac{a+b}{b} = \dfrac{c+d}{d}$$
4
Dividendo
$$\dfrac{a}{b} = \dfrac{c}{d} \implies \dfrac{a-b}{b} = \dfrac{c-d}{d}$$
5
Componendo - Dividendo
$$\dfrac{a}{b} = \dfrac{c}{d} \implies \dfrac{a+b}{a-b} = \dfrac{c+d}{c-d}$$
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