यदि a = 23 और b = -29 तो 25a2+ 40ab + 16b2 का मूल्य है:
Answer : Option B
Explanation : 25a2 + 40ab + 16b2 = (5a + 4b)2
= (5 × 23 – 29 × 4)2 = (115 – 116)2 = 1
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यदि a = 23 और b = -29 तो 25a2+ 40ab + 16b2 का मूल्य है:
25a2 + 40ab + 16b2 = (5a + 4b)2
= (5 × 23 – 29 × 4)2 = (115 – 116)2 = 1