Question

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Answer 1

Answer:

12. (i) 4

13. Therefore 41^2 < 1750. Next perfect square number 42^2 =1764.

14. (i) 9²

Solution: 9²= 81

81= 1+3+5+7+9+11+13+15+17

:. Therefore the answer is 1+3+5+7+9+11+13+15+17

(ii) 15²

Solution: 15²= 225

225=1+3+5+7+9+11+13+15+17+19+21+23+25+27+29

:. Therefore the answer is 1+3+5+7+9+11+13+15+17+19+21+23+25+27+29

15. 169 - 1 = 168

168 - 3 = 165

165 - 5 = 160

160 - 7 = 153

153 - 9 = 144

144 -11 = 133

133 -13 = 120

120 -15 = 105