Q1 of 40 Page 33

Find the value.

(i) |15 - 2|

(ii) |4 - 9|

(iii) |7| × |-4|

Absolute value describes the distance of a number on the number line from 0 without considering which direction from zero the number lies. The absolute value of a number is never negative.


Therefore,


i. |15 - 2| = |13| = 13


ii. |4 - 9| = |-5| = 5


iii. |7| × |-4| = 7 × 4 = 28


More from this chapter

All 40 →
1

Multiply

i. √3(√7 – √3)


ii. (√5 – √7)√2


iii. (3√2 – √3)(4√3 – √2)

 2

Rationalize the denominator.

i. ii.


iii. iv.

2

Solve.

i. |3x - 5| = 1


ii. |7 – 2x| = 5


iii.


iv.

1

Choose the correct alternative answer for the questions given below.

i. Which one of the following is an irrational number?