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Question
विस्तार करो।
(ax + by)2
Sum
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Solution
हम जानते हैं सूत्र:
(a + b)2 = a2 + 2ab + b2
(ax + by)2
= (ax)2 + 2 × (ax) × (by) + (by)2
= a2x2 + 2axby + b2y2
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