Question

Q11) Using (a+b)2 What is the value of
(2.05)2 *​

Answer 1

Answer:

${2.05}^{2} = {(2 + 0.05)}^{2} \\ = {2}^{2} + {0.05}^{2} + 2 \times 2\times 0.05 \\ = 4 + 0.0025 + 0.2 \\ = 4.2025$

Answer 2

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