Question 94Asked in BPSC TRE 1.0 (2023) Mathematics Class 11-12

The function sinᵖθ cos^qθ has maximum value, whenफलन sinᵖθ cos^qθ का अधिकतम मान प्राप्त होता है जब

फलन sinᵖθ cos^qθ का अधिकतम मान प्राप्त होता है जब
  1. Aθ = tan⁻¹√(p/q)θ = tan⁻¹√(p/q)
  2. Bθ = tan⁻¹√(q/p)θ = tan⁻¹√(q/p)
  3. Cθ = tan⁻¹(p/q)θ = tan⁻¹(p/q)
  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) θ = tan⁻¹√(p/q)θ = tan⁻¹√(p/q)

Explanation

Taking logarithms and differentiating gives p cot θ − q tan θ = 0. So tan²θ = p/q and θ = tan⁻¹√(p/q).लघुगणक लेकर अवकलन करने पर p cot θ − q tan θ = 0 मिलता है। अतः tan²θ = p/q और θ = tan⁻¹√(p/q)।

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

This is question 94 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.