Question 114Asked in BPSC TRE 1.0 (2023) Mathematics Class 11-12

The term independent of x in the expansion of ((3/2)x² − 1/(3x))⁶ is((3/2)x² − 1/(3x))⁶ के प्रसार में x से स्वतन्त्र पद है

((3/2)x² − 1/(3x))⁶ के प्रसार में x से स्वतन्त्र पद है
  1. A5/125/12
  2. B−5/12−5/12
  3. C5/85/8
  4. DMore than one of the aboveउपर्युक्त में से एक से अधिक
  5. ENone of the aboveउपर्युक्त में से कोई नहीं
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Correct answer: (A) 5/125/12

Explanation

The general term is ⁶Cᵣ(3/2)⁶⁻ʳ(−1/3)ʳ x^(12 − 3r). It is constant when r = 4: 15 × (9/4) × (1/81) = 5/12.व्यापक पद ⁶Cᵣ(3/2)⁶⁻ʳ(−1/3)ʳ x^(12 − 3r) है। यह r = 4 पर अचर होता है: 15 × (9/4) × (1/81) = 5/12।

From BPSC TRE 1.0 (2023) Mathematics Class 11-12 — Previous Year Paper

This is question 114 of BPSC TRE 1.0 (2023) Mathematics Class 11-12 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.