3 years ago

Can someone answer this please. I will mark brainliest, answer and provide explanation please.

Mathematics

1 answer:

LekaFEV [45]3 years ago

3 0

The question isn’t visible please ask it again I’m sorry :(

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If a = √3-√11 and b = 1 /a, then find a² - b²

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If $b=\frac1a$ , then by rationalizing the denominator we can rewrite

$b = \dfrac1{\sqrt3-\sqrt{11}} \times \dfrac{\sqrt3+\sqrt{11}}{\sqrt3+\sqrt{11}} = \dfrac{\sqrt3+\sqrt{11}}{\left(\sqrt3\right)^2-\left(\sqrt{11}\right)^2} = -\dfrac{\sqrt3+\sqrt{11}}8$

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2 years ago

Factor: d2 + 16dm + 64m2

lutik1710 [3]

Answer:

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Step-by-step explanation:

$d^2 + 16dm + 64 m^2 = (d + 8m)^2$

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3 years ago

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