(1.6)3 - (0.9)3 - (0.7)3 चे मूल्य शोधा.

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SSC CGL 2021 Tier-I (Held On : 13 April 2022 Shift 3)
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  1. 3.024
  2. 3.24
  3. -3.24
  4. -3.024

Answer (Detailed Solution Below)

Option 1 : 3.024
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Detailed Solution

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दिल्याप्रमाणे:

दिलेली पदावली = (1.6)3 - (0.9)3 - (0.7)3

वापरलेले सूत्र:

जर a + b + c = 0, तर a3 + b3 + c3 = 3abc

गणना:

(1.6)3 - (0.9)3 - (0.7)3

= (1.6)3 + (- 0.9)3 + (- 0.7)3

= 3 × 1.6 × (- 0.9) × (- 0.7) [∵ 1.6 - 0.9 - 0.7 = 0]

= 3.024

∴ दिलेल्या पदावलीचे मूल्य 3.024 आहे

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