UPSC Civil Services Main 2023 Mathematics Paper I PDF

Central Government Jobs Administrative / Civil Services 2023

  • Year 2023
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 250
  • Duration Three Hours
  • Languages Hindi & English

Exam Details

Detail Information
Examination CIVIL SERVICES (MAIN) EXAMINATION
Year 2023
Conducting Body UPSC
Paper MATHEMATICS (Paper I)
Subject Mathematics
Duration Three Hours
Maximum Marks 250
Number of Questions 8
Question Type Mixed

This is the Mathematics Paper I from the UPSC Civil Services (Main) Examination held in 2023. The paper is designed to test candidates' in-depth knowledge of various mathematical concepts. It consists of 8 questions divided into two sections, with candidates required to answer five questions in total. Questions 1 and 5 are compulsory, and at least one question must be attempted from each section. The paper allows a time duration of three hours and carries a maximum of 250 marks. This paper is crucial for aspirants aiming for administrative roles through the UPSC Civil Services exam.

Major Topics Covered

  • Linear Algebra
  • Linear Transformations
  • Calculus
  • Limits
  • Convergence of Integrals
  • Coordinate Geometry
  • Vectors
  • Space Geometry

Why This Paper is Important

  • Useful for CIVIL SERVICES (MAIN) EXAMINATION preparation
  • Helps understand the latest exam pattern
  • Useful for practice and self-assessment
  • Covers frequently asked General Studies topics
  • Helpful for analysing question trends

Related Resources

  • CIVIL SERVICES (MAIN) EXAMINATION 2023 MATHEMATICS (Paper II)
  • CIVIL SERVICES (MAIN) EXAMINATION 2022 MATHEMATICS (Paper I)
  • CIVIL SERVICES (MAIN) EXAMINATION 2022 MATHEMATICS (Paper II)
  • UPSC Civil Services Main 2023 Mathematics Paper I Answer Key
  • UPSC Civil Services Main Mathematics Syllabus
  • UPSC Mains Exam Pattern
  • UPSC Civil Services Main Exam Pattern
  • UPSC Mains Subjective Papers

Instructions

  • पुस्तिका के मुख-पृष्ठ पर निर्दिष्ट स्थान पर किया जाना चाहिए।
  • प्राधिकृत माध्यम के अतिरिक्त अन्य किसी माध्यम में लिखे गए उत्तर पर कोई अंक नहीं मिलेंगे।
  • यदि आवश्यक हो, तो उपयुक्त आँकड़ों का चयन कीजिए तथा उनको निर्दिष्ट कीजिए ।
  • जब तक उल्लिखित न हो, संकेत तथा शब्दावली प्रचलित मानक अर्थों में प्रयुक्त हैं।
  • प्रश्नों के उत्तरों की गणना क्रमानुसार की जाएगी ।
  • यदि काटा नहीं हो, तो प्रश्न के उत्तर की गणना की जाएगी चाहे वह उत्तर अंशतः दिया गया हो ।
  • प्रश्न-सह-उत्तर पुस्तिका में खाली छोड़ा हुआ पृष्ठ या उसके अंश को स्पष्ट रूप से काटा जाना चाहिए।

  • There are EIGHT questions divided in TWO SECTIONS and printed both in HINDI and in ENGLISH.
  • Candidate has to attempt FIVE questions in all.
  • Question Nos. 1 and 5 are compulsory and out of the remaining, THREE are to be attempted choosing at least ONE question from each section.
  • The number of marks carried by a question/part is indicated against it.
  • Answers must be written in the medium authorized in the Admission Certificate which must be stated clearly on the cover of this Question-cum-Answer (QCA) Booklet in the space provided.
  • No marks will be given for answers written in a medium other than the authorized one.
  • Assume suitable data, if considered necessary, and indicate the same clearly.
  • Unless and otherwise indicated, symbols and notations carry their usual standard meanings.
  • Attempts of questions shall be counted in sequential order.
  • Unless struck off, attempt of a question shall be counted even if attempted partly.
  • Any page or portion of the page left blank in the Question-cum-Answer Booklet must be clearly struck off.

Questions (page 2)

Section A

Q1.

(a) मान लीजिए V1 = (2, -1, 3, 2), V2 = (-1, 1, 1, -3), V3 = (1, 1, 9, -5) समष्टि mathbb{R}^4 के तीन सदिश हैं। क्या (3, -1, 0, -1) in विस्तृति {V1, V2, V3}? अपने उत्तर को तर्कसहित सिद्ध कीजिए ।
Let V1 = (2, -1, 3, 2), V2 = (-1, 1, 1, -3) and V3 = (1, 1, 9, -5) be three vectors of the space mathbb{R}^4. Does (3, -1, 0, -1) in ext{span } {V1, V2, V3} ? Justify your answer.

(b) T(x, y, z) = (x + z, x + y + 2z, 2x + y + 3z) द्वारा दिए गए रैखिक रूपांतरण: T: mathbb{R}^3 o mathbb{R}^3 की कोटि तथा शून्यता ज्ञात कीजिए।
Find the rank and nullity of the linear transformation: T: mathbb{R}^3 o mathbb{R}^3 given by T(x, y, z) = (x + z, x + y + 2z, 2x + y + 3z)

(c) p तथा q के वो मान निकालिए जिसके लिए lim_{x o 0} rac{x(1+pcos x)-qsin x}{x3} का अस्तित्व है एवं 1 के बराबर है।
Find the values of p and q for which lim_{x o 0} rac{x(1 + p cos x) - q sin x}{x3} exists and equals 1.

(d) समाकल int0^1 rac{log x}{1+x} dx की अभिसारिता का परीक्षण कीजिए।
Examine the convergence of the integral int0^1 rac{log x}{1+x} dx

(e) एक चर समतल, जो कि मूल-बिन्दु O से अचर दूरी 3p पर है, अक्षों को क्रमशः बिन्दुओं A, B, C पर काटता है। दर्शाइए कि चतुष्फलक OABC के केन्द्रक का बिन्दुपथ 9left(rac{1}{x2}+rac{1}{y2}+rac{1}{z2}
ight)=rac{16}{p2} है।
A variable plane which is at a constant distance 3p from the origin O cuts the axes in the points A, B, C respectively. Show that the locus of the centroid of the tetrahedron OABC is 9left(rac{1}{x2} + rac{1}{y2} + rac{1}{z2}
ight) = rac{16}{p2}.

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Frequently asked questions

What is the name of the exam?

The exam is the CIVIL SERVICES (MAIN) EXAMINATION.

Which year is this question paper from?

This question paper is from the year 2023.

Who conducts the Civil Services Main Examination?

The examination is conducted by UPSC (Union Public Service Commission).

What is the subject of this paper?

This paper is for Mathematics (Paper I).

What is the maximum marks for this paper?

The maximum marks for this paper are 250.

What is the time allowed to complete this paper?

The time allowed is Three Hours.

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