Question
Download Solution PDF703 + 203 - 903 का मान ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
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हम जानते हैं कि, a3 + b3 + c3 = 3abc यदि a + b + c = 0
703 + 203- 903
= 703 + 203 + (- 90)3
= 3 × 70 × 20 × (- 90) [∵ 70 + 20 + (- 90) = 0]
= - 378000
∴ दिए गए व्यंजक का मान - 378000 है।
Alternate Method
दिया गया है:
दिया गया व्यंजक है = 703 + 203- 903
गणना:
703 + 203- 903
= 343000 + 8000 - 729000
= 351000 - 729000
= - 378000
∴ दिए गए व्यंजक का मान -378000 है।
Last updated on Jul 17, 2025
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