Question

Evaluate 3.3^2 using suitable identity

Answer 1

Answer:

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Answer 2

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x² = a² + b² = a² + b² + 2ab

3.3² = 3² + 0.3² = 3² + 0.3² + 2×3×0.3

= 9 + 0.09 + 1.8

= 10.89

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