Mathematics - Online Test

Q1. If f and g are polynomials of degrees m and n respectively, and if h(x) = ( f o g )(x) , then the degree of h is
Answer : Option A
Explaination / Solution:


Q2. Let A and B be two sets such that {tex}n(A)=35,n(B)=42\quad and\quad n(A\cap B)=17{/tex}, find {tex}n(A-B){/tex}
Answer : Option C
Explaination / Solution:
No Explaination.


Q3. The coefficient of x6 in (2 + 2x)10 is
Answer : Option D
Explaination / Solution:


Q4. Using Euclid’s division lemma, if the cube of any positive integer is divided by 9 then the possible remainders are
Answer : Option A
Explaination / Solution:


Q5. If sin1 x + sin1 y (2π/3) ; then cos1 x + cos1 y is equal to
Answer : Option B
Explaination / Solution:


Q6. The inequality | z − 4 | < | z −2 | represents the region given by
Answer : Option D
Explaination / Solution:



Q7.
Answer : Option D
Explaination / Solution:

 because , row 1 and row 3 are identical.

Q8.

A rod of length 2l is broken into two pieces at random. The probability density function of the shorter of the two pieces is

The mean and variance of the shorter of the two pieces are respectively

Answer : Option D
Explaination / Solution:



Q9. The solution of the system x + y − 3x = −6 ,  − 7y + 7z = 7 , 3z = 9  is
Answer : Option A
Explaination / Solution:


Q10.

If n is a +ve integer, then the binomial coefficients equidistant from the beginning and the end in the expansion of  are


Answer : Option A
Explaination / Solution: