If $a$ is reciprocal of $b$ , then the reciprocal of $b$ is

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a^{2}

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None

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Solution

The correct option is A a
If $a$ is reciprocal of $b$ , then the reciprocal of $b$ is $a$
If $a$ is reciprocal of $b$ , then
$a \times b = 1$ $[$ Commutative property is true for multiplication $]$
$=> b \times a = 1$
Thus reciprocal of $b$ is $a$

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Similar questions

Q. If p is the arithmetic mean of the positive numbers a and b, and the reciprocal of the number q is the arithmetic mean of the reciprocals of a and b. Then p – q =?

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Q. If

a : b = 2 : 3

and

b : c = 4 : 7

then the reciprocal ratio of

a : c

is ____

Fill in the blanks :

(i)The product of two positive rational numbers is always_______________.
(iii) The product of two negative rational numbers is always_______________.

(iv) The reciprocal of a positive rational number is _______________.

(v) The reciprocal of a negative rational number is _______________.

(vi) Zero has _______________ reciprocal.

(vii) The product of a rational number and its reciprocal is ____________.

(viii) The numbers_______________and_______________are their own reciprocals.

(ix) If a is reciprocal of b, then the reciprocal of b is _______________.

(x) The number 0 is __________________ the reciprocal of any number.

(xi) Reciprocal of $\frac{1}{a}, a \neq$ is __________________.

(xii) $(17 \times 12)^{- 1} = 17^{- 1} \times$ __________________.

If $y$ is the reciprocal of a rational number $x$ , then the reciprocal of $y$ is

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If a is reciprocal of b, then the reciprocal of b is

The correct option is A a If a is reciprocal of b, then the reciprocal of b is aIf a is reciprocal of b, then a×b=1 [Commutative property is true for multiplication]=>b×a=1Thus reciprocal of b is a

If $a$ is reciprocal of $b$ , then the reciprocal of $b$ is

The correct option is A a
If $a$ is reciprocal of $b$ , then the reciprocal of $b$ is $a$
If $a$ is reciprocal of $b$ , then
$a \times b = 1$ $[$ Commutative property is true for multiplication $]$
$=> b \times a = 1$
Thus reciprocal of $b$ is $a$