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प्रश्न
If a = 2, b = −2, find the value of a2 + ab + b2.
योग
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उत्तर
a2 + ab + b2 Putting a = 2 and b = -2 in the given equation
= (2 × 2) + 2 × (-2) + (-2) × (-2)
= 4 - 4 + 4
= 4
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