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Question
The rational numbers `1/2` and –1 are on the opposite sides of zero on the number line.
Options
True
False
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Solution
This statement is True.
Explanation:
Since, positive rational number and negative rational number are on the opposite sides of zero on the number line.
Hence, `- 1/2` and –1 are on the opposite sides of zero on the number line.
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RELATED QUESTIONS
The number `sqrt2` is shown on a number line. Steps are given to show `sqrt3` on the number line using `sqrt2`. Fill in the boxes properly and complete the activity.
Activity :
- The point Q on the number line shows the number ______.
- A line perpendicular to the number line is drawn through the point Q. Point R is at unit distance from Q on the line.
- Right angled ∆ORQ is obtained by drawing seg OR.
`l ("OQ") = sqrt2` , `l("QR") = 1`
`therefore` by Pythagoras theorem,
`[l("OR")]^2 = [l("OQ")]^2 + [l("QR")]^2 `
= `square^2`+ `square^2` = `square` + `square`
= `square`
∴ l(OR) = `square`
Draw an arc with centre O and radius OR. Mark the point of intersection of the line and the arc as C. The point C shows the number `sqrt3`.
Show the number √7 on the number line.
Evaluate:
`4 + 3/(-5)`
Evaluate:
`1/(-15) + 5/(-12)`
Evaluate:
`5/9 + 3/-4`
Find the rational numbers represented by the question marks marked on the following number line
`-3/4` is smaller than –2.
The rational number `(-3)/4` lies to the right of zero on the number line.
Represent the following rational numbers on a number line:
`3/8, (-7)/3, 22/(-6)`
Find a rational number exactly halfway between:
`1/15` and `1/12`
