7)
Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and A = {1, 3, 5, 7, 9}. Find A.
13
Oct
Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and A = {1, 3, 5, 7, 9}. Find A. 10} and A = {1 2 3% 4 5 6 7) 8 9 9}. Find A. Let U = {1 October 13, 2021 Category: Chapter 1 - Sets , Maths , NCERT [...]
Let A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and B = { 2, 3, 5, 7 }. Find A ∩ B and hence show that A ∩ B = B.
13
Oct
Let A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and B = { 2, 3, 5, 7 }. Find A ∩ B and hence show that A ∩ B = B. 10} and B = { 2 2 3% 4 5 6 7 }. Find A ∩ B and hence show [...]
Tags:
10} and B = { 2 ,
2 ,
3% ,
4 ,
5 ,
6 ,
7 }. Find A ∩ B and hence show that A ∩ B = B. ,
7) ,
8 ,
9 ,
Let A = {1 ,
Consider the sets φ, A = {1, 3}, B = {1, 5, 9}, C = {1, 3, 5, 7, 9}. Insert the symbol ⊂ or ⊄ between each of the following pair of sets.
13
Oct
Consider the sets φ, A = {1, 3}, B = {1, 5, 9}, C = {1, 3, 5, 7, 9}. Insert the symbol ⊂ or ⊄ between each of the following pair of sets. 3% 5 7) 9 9}. Insert the symbol ⊂ or ⊄ between each of the following pair of sets. a=–1 B(-1 [...]
Tags:
3% ,
5 ,
7) ,
9 ,
9}. Insert the symbol ⊂ or ⊄ between each of the following pair of sets. ,
a=–1 ,
B(-1 ,
C(–1 ,
Consider the sets φ ,
Ten charges are placed on the circumference of a circle of radius R with constant angular separation between successive charges. Alternate charges 1, 3, 5, 7, 9 have charge (+q) each, while 2, 4, 6, 8, 10 have charge (–q) each. The potential V and the electric field E at the centre of the circle are respectively.
19
Sep
Ten charges are placed on the circumference of a circle of radius R with constant angular separation between successive charges. Alternate charges 1, 3, 5, 7, 9 have charge (+q) each, while 2, 4, 6, 8, 10 have charge (–q) each. The potential V and the electric field E at the centre of the circle [...]
Tags:
10 have charge (–q) each. The potential V and the electric field E at the centre of the circle are respectively. ,
3% ,
4 ,
5 ,
6 ,
7) ,
8 ,
9 have charge (+q) each ,
Ten charges are placed on the circumference of a circle of radius R with constant angular separation between successive charges. Alternate charges 1 ,
while 2 ,
11. The sum of successive odd numbers 1, 3, 5, 7, 9, 11, 13 and 15 is
12
Jul
11. The sum of successive odd numbers 1, 3, 5, 7, 9, 11, 13 and 15 is 11 11. The sum of successive odd numbers 1 13 and 15 is 3% 5 7) 9 July 12, 2021 Category: Chapter 6 - Squares and Square Roots , Chapter 7 - Cubes and Cube Roots , Maths [...]
Posted in:
Chapter 6 - Squares and Square Roots
,
Chapter 7 - Cubes and Cube Roots
,
Maths
,
NCERT Class 8
,
93. The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4 –8 (excluding 8 and including 4).
12
Jul
93. The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for [...]
Tags:
-12 ,
10 ,
11 ,
13 ,
14 ,
15 ,
16 … ,
17 ,
18 ,
19 ,
20 ,
20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4 –8 (excluding 8 and including 4). ,
7) ,
8 ,
93. The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14 ,
91. Following are the number of members in 25 families of a village: 6, 8, 7, 7, 6, 5, 3, 2, 5, 6, 8, 7, 7, 4, 3, 6, 6, 6, 7, 5, 4, 3, 3, 2, 5. Prepare a frequency distribution table for the data using class intervals 0 –2, 2 –4, etc.
12
Jul
91. Following are the number of members in 25 families of a village: 6, 8, 7, 7, 6, 5, 3, 2, 5, 6, 8, 7, 7, 4, 3, 6, 6, 6, 7, 5, 4, 3, 3, 2, 5. Prepare a frequency distribution table for the data using class intervals 0 –2, 2 –4, etc. 2 [...]
39. The range of the data 6, 8, 16, 22, 8, 20, 7, 25 is __________.
10
Jul
39. The range of the data 6, 8, 16, 22, 8, 20, 7, 25 is __________. -22 16 … 20 25 is __________. 39. The range of the data 6 7) 8 July 10, 2021 Category: Chapter 5 - Data Handling , Maths , NCERT Class 8 ,
Example 2 : The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21, 17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25.
09
Jul
Example 2 : The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21, 17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25. -12 10 –15 etc. Find [...]
14. The points scored by a basket ball team in a series of matches are as follows: 17, 2, 7, 27, 25, 5, 14, 18, 10, 24, 48, 10, 8, 7, 10, 28 Find the median and mode for the data.
03
Jul
14. The points scored by a basket ball team in a series of matches are as follows: 17, 2, 7, 27, 25, 5, 14, 18, 10, 24, 48, 10, 8, 7, 10, 28 Find the median and mode for the data. 10 14 14. The points scored by a basket ball team in a series [...]
Tags:
10 ,
14 ,
14. The points scored by a basket ball team in a series of matches are as follows: 17 ,
18 ,
2 ,
24 ,
25 ,
27 ........ ,
28 Find the median and mode for the data. ,
48 ,
5 ,
7) ,
8 ,