Bachelors Level/First Year/First Semester/Science bit/first semester/basic mathematics/syllabus wise questions

Bachelors In Information Technology

Institute of Science and Technology, TU

Basic Mathematics (MTH104)

Year Asked: 2079, syllabus wise question

Application of Definite Integrals
1.
Define arc-length of the curve. Find the length of the curve y=(x2)23y = (\frac{x}{2})^{\frac{2}{3}} from x=0x = 0 to x=2x = 2. [1+4]
Application of Derivative
1.
Define the concavity of the function. The graph of the function is then f(x)=x44x3+10f(x) = x^4 - 4x^3 + 10. Find the intervals on which ff is increasing and on which ff is decreasing. Find where the graph of ff is concave up and where it is concave down. Find the local maximum or local minimum value of function if exist. [2+3+3+2]
Differentiation
1.
Find dydx\frac{dy}{dx} of the following. y2x2=cos(xy)y^2 - x^2 = \cos(xy),x2=9y2x^2 = \frac{9}{y^2}. [5]
First Order Differential Equations
1.
What is a first order linear differential equation? Solve the initial value problem: tdydt+2y=t3t \frac{dy}{dt} + 2y = t^3, t>0t > 0, y(2)=1y(2) = 1. [1+4]
Functions and their graphs
1.
If a function is defined by
f(x)={1+xif x1 x2if x>1f(x) = \begin{cases} 1 + x & \text{if } x \leq -1 \\\ x^2 & \text{if } x > -1 \end{cases}
Evaluate f(3)f(-3), f(1)f(-1), and f(0)f(0) and sketch the graph.
Define different types of discontinuity at a point. At what points the function becomes continuous of the function f(x)=x2x27x+10f(x) = \frac{x-2}{x^2-7x+10} [5+5]
2.
Find the domain and range of the function f(x)=5x+10f(x) = \sqrt{5x + 10}. Draw the graph of the function y=x2y = x^2 shifted up by 1 unit, down by 2 units, also shift 3 units to left, and 2 units right with new position of function. [2+3]
Infinite Sequence and Series
1.
Determine whether the following series are convergence or divergence n=155n1\sum_{n=1}^{\infty} \frac{5}{5n-1}, n=01n!\sum_{n=0}^{\infty} \frac{1}{n!}. [5]
Integration
1.
Find the area of the region between the x-axis and the graph of f(x)=x3x22xf(x) = x^3 - x^2 - 2x, 1x21 \leq x \leq 2. [5]
2.
Evaluate the following integral. 0π41+cosxdx\int_{0}^{\frac{\pi}{4}} \sqrt{1 + \cos x}dx,3x27x+13x,dx\int \frac{3x^2-7x+1}{3x} , dx [5]
Limits and continuity
1.
Define horizontal and vertical asymptotes. Find the appropriate asymptotes to the function: f(x)=xx2+16f(x) = x - \sqrt{x^2 + 16}. [2+3]
Partial Derivatives
1.
Define Gradient vector and directional derivative.Find the direction in which f(x,y)=x22+y22f(x, y) = \frac{x^2}{2} + \frac{y^2}{2} increases and decreases most rapidly at the point (1,1)(1,1). What is the direction of zero change in ff at (1,1)(1,1)? Derivative of f(x,y)f(x, y) at the point (1,1)(1,1) in the direction v=3i4jv = 3i - 4j. [5+2+3]
2.
What is chain rule for function w=f(x,y)w = f(x, y)? To use this rule, find the derivative of w=xyw = xy w.r.t. tt along the path x=costx = \cos t, y=sinty = \sin t. Also, find derivative of ww at t=π2t = \frac{\pi}{2}. [1+4]