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2nd Year Mathematics Full Book Paper

2nd Year · Mathematics · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 70Time: 3 hours

Q1. Multiple choice questions (Attempt all · 20 × 1 = 20)

During the derivation of the standard equation of a horizontal ellipse, what is the defined algebraic relationship between constants a,b and c?
1. b²=a² +c²
2. b²=c² -a²
3. b²=a² - c²
4. b²=a-c
A scalar function assigns a ...... to each point in its domain.
1. Vector
2. Single real number
3. Matrix
4. Complex vector
If y=cx-1. then its corresponding differential equation is:
1. x=1+y
2. =x+y
3. x=y-1
4. =cy
What additional insight does the graphical method provide?
1. The behavior of the functions and their interactions
2. Only the exact angles
3. Only the coefficients
4. Only the constants
The value of a definite integral is always a:
1. Family of functions
2. Real number
3. Variable quantity
4. Imaginary number
Which pair of physical quantities consists entirely of scalar quantities?
1. Distance and Velocity
2. Speed and Acceleration
3. Distance and Speed
4. Displacement and Velocity
The domain of the inverse function f^-1 is the ....... of f.
1. Domain
2. Range
3. Period
4. Zero
In the field of cryptography, nonlinear equations play an important role in designing:
1. Linear database management grids
2. Mechanical safety locks
3. Secure communication systems and encryption algorithms
4. Sorting algorithms for big data sets
The separate linear equations for the pair of lines are:
1. 6x+y=0 and x-4y=0
2. 2x+y=0 and 3x-4y=0
3. 2x-y=0 and 3x+4y=0
4. 3x+y=0 and 2x-4y=0
The logarithmic function y=log_a x is continuous for:
1. All x>0
2. All real numbers
3. All negative real numbers
4. Integers only
When finding the global extrema of a function on a closed interval [a,b], at which points should you first evaluate the function?
1. Only at the point x=0
2. Only at the midpoint of the interval
3. At all critical points and endpoints of the interval
4. At infinity
According to Kepler's first law, the orbits of the planets in the solar system follow which geometric shape?
1. Circular
2. Parabolic
3. Elliptical
4. Hyperbolic
Vector-valued functions are useful in:
1. Engineering
2. Physics
3. Computer graphics
4. All of these
Inflation in economics means that the price of goods is:
1. Decreasing over time
2. Increasing over time
3. Remaining constant
4. Becoming zero
What do the x-coordinates of the intersection points give?
1. The slopes of the curves
2. The maximum values
3. The solutions satisfying f(x)=g(x)
4. The y-intercepts
What is the primary objective of using a trigonometric substitution in integration?
1. To increase the degree of the polynomial
2. To convert a definite integral into an indefinite one
3. To eliminate the radical sign in the integrand
4. To find the derivative of the function
Which branch of mechanics describes the motion of objects without considering the causes of motion?
1. Dynamics
2. Statics
3. Kinematics
4. Thermodynamics
Trigonometric functions are generally not one-to-one on their entire domains because they are:
1. Linear
2. Periodic
3. Constant
4. Undefined
Geometrically, the straight line drawn through the points (a, f(a)) and (b, f(b)) in the Regula-Falsi method is called a:
1. Tangent line
2. Normal line
3. Secant line
4. Asymptote
The point where all three medians of a triangle intersect each other is called the:
1. Orthocenter
2. Circumcenter
3. Incenter
4. Centroid

Q2. Short questions (Attempt any 8 of 12 · 8 × 2 = 16)

Is the following function is transcendental?
Evaluate the following integrals:
Using the second derivative test, find local extreme values of the following function:
Write the order and degree (if ddefined) of the following differential equation:
Define the term "Shifting of Graphs".
A patient receives an IV bolus dose of a drug. The concentration in the blood is modeled by where t is the time in hours since that does was taken. the minimum effective concentraction (MEC) is 3 mg/L. The drug is considered effective if total AUC in a 24-hour period is at least 150 mg-h/L. Find the time T (in hours) when the concentration reaches the MEC.
Find if .
Solve the initial value problem:
Solve the equation:
Evaluate the following:
Find if:
A cup of coffee is served at in a room where the temperature is . After 10 minutes the coffee cools to . Find the temperature of the coffee after 20 minutes.

Q3. Short questions (Attempt any 8 of 12 · 8 × 2 = 16)

The motion of a robotic arm moving along a straight track is described by the velocity function: where v(t) is in meters per second and t is the time in seconds, valid for . Find the distance travelled by the arm.
Find the equations of the circles passing through the points A(3,4) and B(3,-4) and touching the line x+2y+9=0.
The electrical activity of the heart is represented by a variable x, which measures the signal strength of the heartbeat. At steady-state, the signal satisfies the nonlinear equation:
Define analytical geometry.
A ball is thrown vertically upward with a velocity of 20 m/s. Find, the maximum height reached, and the time taken to return to the thrower's hand.
An ellipse has the following properties: The centre is at the point (3,-2). Find the standard equation of this ellipse.
Find the real roots of the following functions correct to two decimal places using the graphical method, by finding some interval of sign change.
Write down an equation of the straight line which cuts the x-axis at (3,0) and y-axis (0,-6).
A ball is thrown vertically upward with a speed of 20 m/s. Find the maximum height attained an the time to reach the maximum height.
Find the equations of the tangent and normal to the circles: .
Find the real roots of nonlinear equations using the Newton-Raphson method. accurate to 4 decimal places.
Write the practical applications of analytical geometry.

Q4. Short questions (Attempt any 9 of 13 · 9 × 2 = 18)

Find the Find the domain and range of the following vector-valued functions:
Prove the following:
A radio tower stands on flat ground with a small antenna mounted at its top. From a point 50 meters away from the base of the tower. The antenna subtends the same angle as a 1 meter vertical rod placed at the base of the tower. The total height of the tower and antenna is 10 meters.

(a) Find the height of the tower (without the antenna).

(b) Calculate the subtended angle.
Given , construct r(t).
Prove that .
Solve the following trigonometric eqautions:
Find the first-order derivatives of the following vector-valued functions with respect to t.
Find the domain of the following functions:
Solve the following trigonometric eqautions:
A Ferris wheel of radius 20 m rotates with an angular speed of 0.2 rad/sec.
(a) Construct its position vector r(t)
(b) Find the passenger's velocity at t =10sec
(c) Show that the acceleration is centripetal (toward the center)
Without using calculator find the value of the following:
A projectile is launched from the ground with an initial velocity 30m/s. The range R of the projectile is given by the formula , where is the launch angle to the horizontal is the acceleration due to gravity.

(a) Find the angle (in degrees) required for the projectile to hit a target exactly 80 meters away.

(b) If the maximum range achievable is determine the angle & that gives the maximum range. Justify your answer mathematically.
Find the first-order derivatives of the following vector-valued functions with respect to t.