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3 years ago

Use induction to prove that 2 divides n^2 n whenever n is a positive integer

Mathematics

1 answer:

andrey2020 [161]3 years ago

5 0

Answer:

that's wrong

Step-by-step explanation:

for n = 1

n^(2n)=1²=1

and 2 doesnt devide 1

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3 years ago

Write down the reciprocal of<br> 1/3

Leokris [45]

<h2><u>RECIPROCAL</u></h2>

<h3>ANSWER: </h3>

$\boxed{ \bold{3 \: \: \: or \: \: \: \frac{3}{1} }}$

<h3>EXPLANATION:</h3>

As we can see above, it's clear that 3 and 1/3 are reciprocals of each other.

And we can find the reciprocal of 1/3 by forming a fraction and to multiply the numerator and denominator by 3.

$\\ \large \tt \: \frac{1 \times 3}{ \frac{1}{3} \times 3 } = \bold{ \frac{3}{1} = 3} \\ \\$

Hence, 3/1 or 3 is the correct answer.

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2 years ago

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In the figure above, if a:b:c = 3:4:1, what is the value of a?

Darina [25.2K]

Answer:

Step-by-step explanation:

The line is divided up into 3 parts, a part of 3, a part of 4, and a part of 1. If we had those parts together we get 8 meaning if we divided the line into equal parts that also fit into a, b, and c there would be 8. We can than divide the line into 8 parts which would be 10 each since a line is 180 degrees. Since a is 3 than a gets 3 of those parts meaning a would be 30

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3 years ago

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jonny [76]

Answer:

Step-by-step explanation:

To solve this, add.

28 + 18 = 46

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4 years ago

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$\bf 1+cot^2(\theta)=csc^2(\theta)\implies cot^2(\theta)=csc^2(\theta)-1
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$\bf csc(x)-2=0\implies csc(x)=2\implies \cfrac{1}{sin(x)}=2\implies \cfrac{1}{2}=sin(x)
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sin^{-1}\left( \frac{1}{2} \right)=\measuredangle x\implies \frac{\pi }{6}~~,~~\frac{5\pi }{6}=\measuredangle x\\\\
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3 years ago