Mathematics: What is the opposite of 24? what is the reciprocal of 24? use a pencil and paper. Describe any similarities and differences between the opposite of a nonzero number and the reciprocal of that number. the opposite of 24 is □ the reciprocal of 24 is □

What is the opposite of 24? what is the reciprocal

Ответ:

emilyharper

14.07.2021

-24, $\frac{1}{24}$

Step-by-step explanation:

An opposite number or additive inverse of any number (n) is a number which, if added to n, results in 0. The opposite number for n is written as −n.

For 24, this is -24.

A multiplicative inverse or reciprocal for a number n, is a number which when multiplied by n, their product is 1. To find the multiplicative inverse of a real number, just divide 1 by that number. The reciprocal for n is written as $\frac{1}{n}$ or $n^{-1}$ .

For 24, this is $\frac{1}{24}$ .

**This content involves opposite and reciprocal numbers, which you may wish to revise. I'm always happy to help!

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Ответ:

tmrodriguez1

24.06.2021

Mathematics

$0 \leq \theta \leq 2\pi;\\ 2\cos(2\theta) + 4\cos(\theta) - 6 = 0|:2\\\cos(2\theta) + 2\cos(\theta) - 3 = 0\\2\cos^2{\theta} - 1 + 2\cos(\theta) - 3 = 0\\2\cos^2{\theta} + 2\cos(\theta) - 4 = 0\\$

$Let \ t = \cos(\theta)'\\2t^2 + 2t - 4 = 0 = By \ the \ quadratic formula:\\t = \frac{-2 \pm \sqrt{4 - 4(2)(-4)}}{4} = \frac{-2 \pm \sqrt{36}}{4} = \frac{-2 \pm 6}{4} = \frac{-1 \pm 3}{2} = t \in \{1; -2\}\\\\\cos(\theta) = 1 = \theta \in \{0, \pi\} = the \ answer \ is \ C$

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What is the opposite of 24? what is the reciprocal of 24? use a pencil and paper. Describe any similarities and differences between the opposite of a nonzero number and the reciprocal of that number. the opposite of 24 is □

the reciprocal of 24 is □

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