KL Deemed to be University General Mathematics-iv ce-211 model question papers



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Posted Date: 01 Apr 2013      Posted By:: Jeya Priya    Member Level: Gold  Points: 5 (₹ 4)

2011 KL Deemed to be University General B.Tech Mathematics-iv ce-211 Question paper



Course: B.Tech   University/board: KL Deemed to be University

Are you looking for the old question papers of K L University MATHEMATICS-IV CE-211? Here is the previous year question paper from K L University. This is the original question paper from the MATHEMATICS-IV CE-211 first semester exam conducted by K L University in year 2011. Feel free to download the question paper from here and use it to prepare for your upcoming exams



KONERU LAKSHMAIAH COLLEGE OF ENGINEERING


(AUTONOMOUS)



II/IV B. Tech I SEMESTER / DECEMBER

(REGULAR)



MATHEMATICS-IV CE-211



Time: 3 Hrs Max. Marks: 60

Answer One Question from each unit

Answer All Units



UNIT I



I. (a) Obtain a Fourier Series for f (x) = x sin x, 0 < x < 2p

(b) If f (x) = p x, 0 = x = 1



= p (2-x), 1 = x = 2, show that in the interval (0,2),



(OR)

(c) Obtain Fourier Series for the function f (x) given by ,

,

Hence deduce that

(d) Obtain a half range sine series for f (x) = x- x2 in (0,1).



UNIT II



II. (a) Find the Fourier Transform of f(x)= 1-x2, 1x1= 1

0, 1x1 > 1

Hence evaluate

(b) Express the function f (x) = 1, for 1x1 = 1

0, for 1x1 > 1, as a Fourier ritegral

Hence evaluate

(OR)



(c) Obtain the constant term and the coefficients of the first sine & cosine terms in Fourier Expansion of y as given in the following table

x: 0 1 2 3 4 5

y: 9 18 24 28 26 20



(d) Find the Fourier Cosine transform of f (x)= e-ax, (a>0)



UNIT III



III. (a) Find the first and second derivatives of f(x) at x = 1.5 of

x: 1.5 2.0 2.5 3.0 3.5 4.0

y: 3.375 7.000 13.625 24.000 38.875 59.000





(b) Find an approximate value of log e 5 by calculating to 4 decimal places, by Simpsons Rule dividing the range into 10 equal parts.

(OR)



(c) Using Range Kutta Method of 4th order compute y (2) and y (4) from , taking h = 0.1

(d) Apply Eulers method to solve y1 = x + y, y (0) = 0, choosing the step length h = 0.2 (carry out 6 steps)



UNIT IV



IV. (a) Find by Taylors series method, the value of y at x = 0.1 & x = 0.2 to five places of decimals from

(b) Find the value of y for x = 0.1, by picards method, given that



(OR)



(c) Solve the equation y11=x+y, with the boundary conditions y (0) = y (1) = 0.



(d) Determine the value of y at the pivotal points of the interval (0,1) of y satisfies the

boundary value problem



UNIT V



V. (a) Find K so that the following can serve as the probability density of a random variable

f(x) = 0, x = 0



(b) If the amount of cosmic radiation to which a person is exposed while flying by jet across the united states is a random variable having the normal distributions with Mean = 4.35 mrem and s = 0.59 mrem, find the probabilities that the amount of cosmic radiation to which a person will be exposed on such a flight is (i) between 4.00 & 5.00 mrem (ii) at least 5.50 mrem

(OR)



(c) If 20 % of the memory chips made in a certain plant are defective, what are the probabilities that in a lot of 100 randomly chosen for inspection

(i) at most 15 will be defective

(ii) Exactly 15 will be defective

(d) In a certain country, the proportion of highway sections requiring repairs in any given year is a random variable having the beta distribution with a = 3, ß = 2

(i) On the average what percentage of the highway sections require repairs in any given year

(ii) Find the probability that at most half of the highway sections will require repairs in any given year.





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