Verify -(-x) = x for
(i) when x = 3/5
(ii) x = -7/9
(iii) x = 13/-15
Solution:
(i) when x = 3/5
-(-3/5) = 3/5
(ii) x = -7/9
-(-(-7/9)) = -7/9
(iii) x = 13/-15
-(-(13/-15)) = 13/-15
Hence verified.
✦ Try This: Verify - (- x) = x for x = -2/3
-(-(-2/3)) = -(2/3) = -2/3
Hence verified
☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 1
NCERT Exemplar Class 8 Maths Chapter 1 Problem 103
Verify -(-x) = x for (i) when x = 3/5, (ii) x = -7/9, (iii) x = 13/-15
Summary:
Hence Verified -(-x) = x for (i) when x = 3/5, (ii) x = -7/9, (iii) x= 13/-15
☛ Related Questions:
- Give one example each to show that the rational numbers are closed under addition, subtraction and m . . . .
- Verify the property x + y = y + x of rational numbers by taking (a) x = 1/2, y = 1/2, (b) x = -2/3, . . . .
- Simplify each of the following by using suitable property. Also name the property. (a) [1/2 × 1/4] + . . . .
Math worksheets and
visual curriculum
visual curriculum