Advertisements
Advertisements
प्रश्न
Verify the property x + y = y + x of rational numbers by taking
`x = (-3)/7, y = 20/21`
Advertisements
उत्तर
Given, `x = (-3)/7, y = 20/21`
Then, LHS = x + y
= `(-3)/7 + 20/21`
= `(-9 + 20)/21`
= `11/21`
RHS = y + x
= `20/21 - 3/7`
= `(20 - 9)/21`
= `11/21`
∴ LHS = RHS
Hence, x + y = y + x
APPEARS IN
संबंधित प्रश्न
Verify the property: x × y = y × x by taking:
Verify the property: x × (y × z) = (x × y) × z by taking:
Use the distributivity of multiplication of rational numbers over their addition to simplify:
Name the property of multiplication of rational numbers illustrated by the following statements:
Find: `2/5 xx (-3)/7 - 1/14 - 3/7 xx 3/5`.
For all rational numbers a, b and c, a(b + c) = ab + bc.
Verify the property x + y = y + x of rational numbers by taking
`x = 1/2, y = 1/2`
Simplify the following by using suitable property. Also name the property.
`[1/2 xx 1/4] + [1/2 xx 6]`
Verify the property x × (y + z) = x × y + x × z of rational numbers by taking.
`x = (-2)/3, y = (-4)/6, z = (-7)/9`
Four friends had a competition to see how far could they hop on one foot. The table given shows the distance covered by each.
| Name | Distance covered (km) |
| Seema | `1/25` |
| Nancy | `1/32` |
| Megha | `1/40` |
| Soni | `1/20` |
Who walked farther, Nancy or Megha?
