1. Write the absolute values of the following integers. +13, -31, 10,-42,0, +60, -17, 26, -21
1. Write the absolute values of the following integers. +13, -31, 10,-42,0, +60, -17, 26, -21
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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
Transcribed Image Text:(iii) Smaller numbers are represented on the left of bigger numbers.
he number 0.
UII uie lelt ôf the origin O, the
EXERCISE
4A
1. Write the absolute values of the following integers.
+13, -31, 10, -42,0, +60, -17, 26, -21
2. Find the value of each of the following.
(i) |-12| +12
(ii) |+14|-|-14|
(iii) 7 +|-7||
(iv) 53|-1-35|
(v) |-16|-6
(vi) |8-3| +|-5히
(vil) |-5| + 1-17기-10 (vili) |23|-I-13| +1-3|
3.
(a) If +25 stands for a profit of 25 then what is the number that will show a loss of 10?
(b) If +6 stands for a displacement of 6 m towards the east then what is the number that
will show a displacement of 4 m towards the west?
(c) If +10 stands for 10 steps forward then what is the number that will represent 15
steps backward?
(d) If +8 stands for a fall of 78 in the price of a book then what is the number that will
show a rise of 20 in its price?
4. Fill in the blanks with >, < or =,
(1) (+2)... (-2)
(iii) 7... (+15)
(vii) (-4) .. O
(iv) (-13)... (-3)
(viii) 0... (+6)
(ii) 14... (-41)
(v) (-19)... (-91)
(vi) (+23)... (+32)
(ix) (-40)... (+4).
(x) -3| ... 3
(xi) (+16) ...|-16|
(xii) |-27|... +7|
5.
(a) Write the integers from -3 to +3.
(b) Write all the negative integers that are greater than-10.
(c) Write all the positive integers that are less than +5.
6. Write the integers.
(1) 1, -3,-2, 4, 0, -1 in the ascending order.
(ii)-4, 6, -11, 11, 8, -5 in the descending order.
(iii) 20, -5,-10, 10. -7,0, -2 in the ascending order.
(iv)-3,-2, 4, 1,-4, 6,-6 in the descending order.
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