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3 years ago

What is the r in this equation. R+10x2

Mathematics

1 answer:

RideAnS [48]3 years ago

8 0

R+20x is the solution

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Solve the value of Z 8 = 16

dezoksy [38]

Answer:

Z=2

Step-by-step explanation:

Z8=16

Z=16/8

Z=2

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3 years ago

Whats 2+2? free brainliest btw

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2 years ago

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3 years ago

How do u figure out my equation? I know I need to use tan, but how?

Marysya12 [62]

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3 years ago

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Question number 8. Prove that 3 + √5 is an irrational number.

Marina86 [1]

Answer :

Let's assume the opposite of the statement i.e., 3 + √5 is a rational number.

$\\ \sf \: 3 + \sqrt{5} = \frac{a}{b} \\ \\ \qquad \: \tiny \sf{(where \: \: a \: \: and \: \: b \: \: are \: \: integers \: \: and \: \: b \: \neq \: 0)} \\$

$\\ \sf \: \sqrt{5} = \frac{a}{b} - 3 = \frac{a - 3b}{b} \\$

Since, a, b and 3 are integers. So,

$\\ \sf \: \frac{p - 3b}{b} \\ \\ \qquad \tiny \sf{ \: (is \: \: a \: \: rational \: \: number \:) } \\$

Here, it contradicts that √5 is an irrational number.

because of the wrong assumption that 3 + √5 is a rational number.

$\\$

Hence, 3 + √5 is an irrational number.

7 0

3 years ago