## + b + c + d)n - MCQ

Compared to other sections, Mathematics is considered to be the most practice demanding subject. If praticed regularly, mathematics can help students to secure a meritorious position in the exam. These questions are very important in achieving your success in Exams after 12th.

Q1. The number of terms in the expansion of (a+b+c)n will be

•  n+1
•  n+3
•  (n+1)(n+2)/2
•  None of these

Q2. The total number of terms in the expansion of (x+y)100+(x-y)100 after simplification is

•  50
•  51
•  202
•  None of these

Q3. The expression [x+(x3-1)1/2]5]+[x-(x3-1)1/2]5] is a polynomial of degree

•  5
•  6
•  7
•  8

Q4. The number of terms in the expansion of [(x-3y)2(x+3y)2]3 is

•  6
•  7
•  8
•  None of these

Q5. If n is a negative integer and |x| < 1 then the number of terms in the expansion of (1+x)n is

•  n+1
•  n+2
•  2n
•  Infinite

Q6. The number of terms in the expansion of (1+3x+3x2+x3)6 is

•  18
•  9
•  19
•  24

Q7. The number of terms whose values depend on x in the expansion of (x2-2+1/x2)n is

•  2n+1
•  2n
•  n
•  None of these

Q8. The number of real negative terms in the binomial expansion of (1+ix)4n-2,n belongs to N, x>0, is

•  n
•  n+1
•  n-1
•  2n

Q9. 118. The number of distinct terms in the expansion of (x+2y-3s+5w-7u)n is
I. n+1
II. n+4C4
III. n+4Cn
IV. (n+1)(n+2)(n+3)(n+4)/24

•  I, II, III
•  II, III, IV
•  I, III, IV
•  All of above

Q10. In how many terms in the expansion of (x1/5+y1/10)55 do not have fractional power of the variable

•  6
•  7
•  8
•  10

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