Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get Atmost three correct answers

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#Question id: 15398

#Section 1: Engineering Mathematics

The inverse Laplace transform of H (s) =  s+3 /s²+2s+1 for   is 

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#Question id: 15399

#Section 1: Engineering Mathematics

If I(s) = 3s/ (s+1)(s+4), then i(t) is 

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#Question id: 15400

#Section 1: Engineering Mathematics

Inverse Laplace transform for 6s / (s+1)(s+2)(s+4) is

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#Question id: 15401

#Section 1: Engineering Mathematics

If roots of the auxiliary equation of are real and equal,  the general solution of the differential equation is 

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#Question id: 15402

#Section 1: Engineering Mathematics

The solution to x²y" + xy' - y = 0 is 

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#Question id: 15403

#Section 1: Engineering Mathematics

 Inverse Laplace transform for 2s+3/ s²+3s  is