Mathematics -I Semester Exam 2021
34 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

The length of the perpendicular from the point (-4, 3) to the line $5x + 12y + 9 = 0$ is $13/5$.

True

The eccentricity of the parabola defined by $x^2 = 4ay$ is $2$.

False

The transverse axis of the hyperbola represented by $x^2/a^2 - y^2/b^2 = 1$ is $2b$.

False

The radius of the circle given by the equation $x^2 + y^2 + 2x + 6y + 7 = 0$ is $ rac{ oot3}{3}$.

<p>False</p> Signup and view all the answers

For any angle, it holds true that $Sin20° * Sin40° * Sin60° * Sin80° = rac{3}{16}$.

<p>True</p> Signup and view all the answers

If $(a + ib)^3 = x + iy$, then it is true that $ rac{a}{x} + rac{b}{y} = 4(x^2 - y^2)$.

<p>True</p> Signup and view all the answers

The radius and center of the circle given by $x^2 + y^2 + 2x + 6y + 7 = 0$ are at $(1, 3)$.

<p>False</p> Signup and view all the answers

The perpendicular distance from the point (-4, 3) to the line $5x + 12y + 9 = 0$ results in an independent value per trigonometric standards.

<p>False</p> Signup and view all the answers

The result of $tan(a) * tan(60° - α) * tan(60° + α) = cos(3α)$ holds true for all values of $α$.

<p>True</p> Signup and view all the answers

The equation $(bc-ab)/(c+ab+cb) + (ca-bc)/(a+bc+ac) + (ab-ca)/(b+ca+c) = 0$ for all non-zero variables is universally true.

<p>True</p> Signup and view all the answers

If $cos^2x + cos^2y + cos^2z = rac{ ext{π}}{2}$, then $x^2 + y^2 + z^2 + 2xyz = 0$.

<p>False</p> Signup and view all the answers

The equation $cos^2x + cos^2y + cos^2z = π$ implies that the individual values of $cos^2x$, $cos^2y$, and $cos^2z$ can be greater than 1.

<p>False</p> Signup and view all the answers

If $A + B = 45°$, then $(1 + tan A)(1 + tan B) = 1$.

<p>False</p> Signup and view all the answers

If $A + B = 45°$, then $tan(A + B) = 1$.

<p>True</p> Signup and view all the answers

The partial fraction of $ rac{3x + 1}{(x - 1)(x^2 + 1)}$ can be expressed as $ rac{A}{x - 1} + rac{Bx + C}{x^2 + 1}$.

<p>True</p> Signup and view all the answers

The coefficients of terms in the expansion of $(1 + x)^n$ for the 14th, 15th, and 16th terms can only be in arithmetic progression if $n > 16$.

<p>False</p> Signup and view all the answers

The expansion of $(1 + x)^n$ is guaranteed to have the 14th, 15th, and 16th coefficients in an arithmetic progression for any integer $n$ greater than 16.

<p>False</p> Signup and view all the answers

If the eccentricity of an ellipse is $ rac{1}{2}$, then the distance between the foci must be 1.

<p>False</p> Signup and view all the answers

The three angles $x$, $y$, and $z$ must have cosines that fulfill the equation $cos^2x + cos^2y + cos^2z = ext{π}$ to validate the relationship $x^2 + y^2 + z^2 + 2xyz = 1$.

<p>True</p> Signup and view all the answers

If a circle touches the line $2x - y - 4 = 0$, it has a fixed radius related to the coordinates of its center at (1, -3).

<p>True</p> Signup and view all the answers

The value of $cos(36°)$ is equal to $( rac{√5 + 1}{4})$.

<p>True</p> Signup and view all the answers

The value of $sin(54°)$ is $( rac{√5 - 1}{4})$.

<p>False</p> Signup and view all the answers

If $sin(A) = rac{4}{5}$, then $cos(2A)$ equals $ rac{7}{25}$.

<p>True</p> Signup and view all the answers

The slope of the line $2x + 5y + 6 = 0$ is $ rac{2}{5}$.

<p>False</p> Signup and view all the answers

The argument of $Z = -1 - i$ is $3π/4$.

<p>True</p> Signup and view all the answers

The value of $sin(15°)$ is $( rac{√3 - 1}{√2})$.

<p>True</p> Signup and view all the answers

$tan^{-1}(-√3)$ yields a principal value of $-π/3$.

<p>True</p> Signup and view all the answers

The value $sin(90° - A)$ equals $cos(A)$ for any angle A.

<p>True</p> Signup and view all the answers

$cos(54°)$ is equal to $( rac{√5 + 2}{4})$.

<p>False</p> Signup and view all the answers

If $sin(A) = rac{4}{5}$, then $sin^2(A) + cos^2(A)$ equals 1.

<p>True</p> Signup and view all the answers

The value of $sin(90° - A)$ equals $sin(A)$.

<p>False</p> Signup and view all the answers

The principal value of $tan^{-1}(√3)$ is $π/3$.

<p>True</p> Signup and view all the answers

For $A = 30°$, $sin(30°)$ is equal to $ rac{1}{2}$.

<p>True</p> Signup and view all the answers

The formula $cos(2A) = 1 - 2sin^2(A)$ is incorrect.

<p>False</p> Signup and view all the answers

Study Notes

Examination Paper Details

  • Subject: Mathematics -I
  • Semester: I/II
  • Exam Date: 2021 (Odd)
  • Time: 3 Hours
  • Full Marks: 70
  • Passing Marks: 28

Instructions

  • Answer all 20 questions from Group A, each carrying 1 mark.
  • Answer all 5 questions from Group B, each carrying 4 marks.
  • Answer all 5 questions from Group C, each carrying 6 marks.
  • All parts of a question must be answered together in a sequence. Otherwise, they may not be evaluated.
  • Figures in the right margin indicate marks.

Question Types and Marks Distribution

  • Group A: 20 questions (1 mark each)
  • Group B: 5 questions (4 marks each)
  • Group C: 5 questions (6 marks each)

Important Instructions (General)

  • Answer all parts of a question together and in sequence in one location.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Description

Prepare for your Mathematics -I examination with this comprehensive quiz based on the syllabus for Semester I/II. It covers various question types across Groups A, B, and C, ensuring thorough revision. Evaluate your understanding and readiness for the exam with marks distribution details provided.

More Like This

Algebra Semester Exam
5 questions

Algebra Semester Exam

FortunateElbaite avatar
FortunateElbaite
Algebra 2 Semester 2 Exam Flashcards
76 questions
Use Quizgecko on...
Browser
Browser