Question 57Asked in CTET December 2024 Paper 2 Maths & Science, 14 Dec 2024

Let A = 3x² − 8x + 11, B = −2x² + 12x, C = −4x² + 7 and D = x² − x − 11.माना कि A = 3x² − 8x + 11, B = −2x² + 12x, C = −4x² + 7 और D = x² − x − 11 है।

Let A = 3x² − 8x + 11, B = −2x² + 12x, C = −4x² + 7 and D = x² − x − 11. If (A + B + C) − D = px² + qx + r, then the value of (p + q + r) is :
माना कि A = 3x² − 8x + 11, B = −2x² + 12x, C = −4x² + 7 और D = x² − x − 11 है। यदि (A + B + C) − D = px² + qx + r है, तो (p + q + r) का मान है :
  1. A3131
  2. B2727
  3. C2828
  4. D3030
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Correct answer: (D) 3030

Explanation

A + B + C = −3x² + 4x + 18; subtracting D gives −4x² + 5x + 29. So p + q + r = −4 + 5 + 29 = 30.A + B + C = −3x² + 4x + 18; D घटाने पर −4x² + 5x + 29 मिलता है। अतः p + q + r = −4 + 5 + 29 = 30।

From CTET December 2024 Paper 2 Maths & Science, 14 Dec 2024 — Previous Year Paper

This is question 57 of CTET December 2024 Paper 2 Maths & Science, 14 Dec 2024 — 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.