Science, asked by bidya77astagmailcom, 7 months ago

Hence, the
EXERCISE 6.3
1. What could be the possible 'one's' digits of the square root of eachel
2. Without doing any calculation, find the numbers which are surely net
(m) 998001
numbers?
(i) 9801
(ü) 99856
COM
(i) 153
(ii) 257
(iii) 408
3. Find the square roots of 100 and 169 by the method of repeateds
4. Find the square roots of the following numbers by the Prime Factor
(1) 729
(i) 400
(iii) 1764
(v) 7744
(vi) 9604
(vii) 5929
(ix) 529
(x) 8100
5. For each of the following numbers, find the smallest whole number
number Also find the​

Answers

Answered by khushi20079
0

Answer:

Bro or Sis!, Write your class.

Answered by jyoti3297
1

Answer:

(i) 9801

Answer: 1 and 9.

Explanation: Since 12 and 92 give 1 at unit’s place, so these are the possible values of unit digit of the square root.

(ii) 99856

Answer: 4 and 6

Explanation: Since, 42 = 16 and 62 = 36, hence, 4 and 6 are possible digits

(iii) 998001

Answer: 1 and 9

(iv) 657666025Explanation: Since, 52 = 25, hence 5 is possible.

3 answer

Square root of 100 by Repeated subtraction:

1. 100 - 1 = 99

2. 99 - 3 = 96

3. 96 - 5 = 91

4. 91 -7 = 84

5. 84 - 9 = 75

6. 75 - 11 = 64

7. 64 - 13 = 51

8. 51 - 15 = 3610. 19 - 19 = 0

We get 0 at 10th step. Thus, 10 is the square root of 100.

square root 1

Square root of 169 by Repeated subtraction:

1. 169 - 1 = 168

2. 168 - 3 = 165

3. 165 - 5 = 160

4. 160 - 7 = 153

5. 153 - 9 = 144

6. 144 - 11 = 133

7. 133 - 13 = 120

8. 120 - 15 = 105

9. 105 - 17 = 88

10. 88 - 19 = 69

11. 69 - 21 = 48

12. 48 - 23 = 25

13. 25 - 25 = 0

We get 0 at 13th step. Thus 13 is the square root of 16

Answer 4

(i) 729

square root 3

Thus, Answer = 27

(ii) 400

square root 4

Thus, Answer = 20

(iii) 1764

Answer:

square root 5

Thus, Answer = 42

(iv) 4096

Answer:

square root 6

Thus, Answer = 64

(v) 7744

Answer:

square root 7

Thus, Answer = 88

(vi) 9604

Answer:

square root 8

Thus, Answer = 98

(vii) 5929

Answer:

square root 9

Thus, Answer = 77

(viii) 9216

Answer:

square root 10

Thus, Answer = 96

(ix) 529

Answer:

square root 11

Thus, Answer = 23

(x) 8100

Answer:

square root 12

Thus, Answer = 90

Answer 5

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