The reciprocal of -1 is
(a) 1
(b) -1
(c) 0
(d) Not defined

Solution:

Given number -1

The reciprocal means inter hanging numerator and denominator

Here, by default the denominator is 1

So, the reciprocal would be 1/-1 = -1

✦ Try This: Find the reciprocal of -2/9

Here, the numerator is -2 and denominator is 9

By interchanging we get 9/-2

Hence, the reciprocal is -9/2

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 1

NCERT Exemplar Class 8 Maths Chapter 1 Problem 17

The reciprocal of -1 is (a) 1, (b) -1, (c) 0, (d) Not defined

Summary:

The reciprocal of -1 is -1

☛ Related Questions:

• The reciprocal of 0 is (a) 1, (b) -1, (c) 0, (d) Not defined
• The reciprocal of any rational number p/q , where p and q are integers and q ≠ 0, is (a) p/q, (b) 1, . . . .
• If y be the reciprocal of rational number x, then the reciprocal of y will be (a) x, (b) y, (c) xy, . . . .