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madreJ [45]
3 years ago
14

A²- b² = a² + b² = (a + b)³ =

Mathematics
1 answer:
trasher [3.6K]3 years ago
5 0

Answer:

a²- b²=(a+b)(a-b)

a² + b²=(a+b)²-2ab or (a-b)²+2ab

(a + b)³=a³+3a²b+3ab²+b³ or, a³+b³+3ab(a+b)

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Answer:

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Step-by-step explanation:

Given

The attached triangle

Required

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In trigonometry:

cos\theta = \frac{Adjacent}{Hypotenuse}

In this case:

cos V= \frac{TV}{UV}

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Rationalize:

cos\ V = \frac{2}{\sqrt{29}}*\frac{\sqrt{29}}{\sqrt{29}}

cos\ V = \frac{2\sqrt{29}}{29}

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