Question

Q21- What is the multiplicative inverse 1 point
of -1?
O 1/2​

Answer 1

Step-by-step explanation:

Q1. Write any five rational numbers between -5/6

and 7/8.

Answer 2

Answer:

$\tt{ \large{ \fbox{ \red{❥Q}}{ \large{ \fbox{ \pink{ Ú}}{ \fbox{ \purple{Ê}}{ \fbox{ \red{S}}\fbox{ \blue{T}}{ \fbox{ \green{Í}}{ \fbox{ \orange{Õ}}{ \fbox{ \color{blue}{N}}}}}}}}}}}$

Q. What is the multiplicative inverse of the following?

० -1

०$\frac{1}{2}$

$\tt{ \large{ \fbox{ \red{❥À}}{ \large{ \fbox{ \pink{N}}{ \fbox{ \purple{S}}{ \fbox{ \red{W}}\fbox{ \blue{Ê}}{ \fbox{ \green{R}}}}}}}}}$

$\large{ \frak{ \underline{Solⁿ 1:}}}$

$\frak{ \pink{ \underline{ \purple{Multiplicative \: inverse \: of \: -1 }}}}$

Let the multiplicative inverse of -1 be x

${ \sf{ - 1 \times x = 1}}$

${ \sf{x = \frac{1}{ - 1} = - 1}}$

$\pink{ \fbox{∴ x = -1}}$

-1 is the multiplicative inverse of -1

$\large{ \frak{ \underline{Solⁿ 2:}}}$

$\frak{ \blue{ \underline{ \red{Multiplicative \: inverse \: of \: \frac{1}{2} }}}}$

Let the multiplicative inverse of

$\frac{1}{2}$ be y.

${ \sf{ \frac{1}{2} \times y = 1}}$

$\sf{y = \frac{2}{1} = 2}$

$\blue{ \fbox{∴ y= 2}}$

2 is the multiplicative inverse of $\frac{1}{2}$.

$\large \frak{ \underline{ \dag{ \: More \: information : }}}$

• Multiplicative inverse is also known as reciprocal.

• When a number is multiplied by its Multiplicative inverse, its value is 1.

• The form is such that, $\frac{a}{b}$ = $\frac{b}{a}$.

$\sf{ \blue{Hope \: it \: helps...}}$

${ \huge{ \pink{ \underline{ \: \: \: \: \: \: \: \: \: \: \: }}{ \purple{ \underline{ \: \: \: \: \: \: \: \: \: \: \: }}{ \red{ \underline{ \: \: \: \: \: \: \: \: \: \: \: }}{ \blue{ \underline{ \: \: \: \: \: \: \: \: \: \: \: }}}}}}}$