Q.1 Express the following as the sum of two consecutive integers.

(i) 21^{2}

(ii) 13^{2}

(iii) 11^{2}

(iv) 19^{2}

Answers (1)

(i) 212 = 441 => 220 + 221

(ii) 132 = 169 => 84 + 85

(iii) 112 = 121 => 60 + 61

(iv) 192 = 361 => 180 + 181

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