Question

(29)^2 using identity and evavulate​

Answer 1

Answer:

= 1002 + 2 × 100 × 1 + 12

= 10000 + 200 + 1 = 10201

(ii) 982 = (100 - 2)2

= 1002 - 2 × 100 × 2 + 22

= 10000 - 400 + 4 = 9604

(iii) 0.982 = (1- 0.02)2

= 12 - 2 × 1 × 0.02 + (0.02)2

= 1 - 0.04 + 0.0004

= 0.9604

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