Question

Passage type questions :
Passage : Let n be a positive integer and x,a be real numbers, then
5.
1) (x + a)" = "C_x".aº +"
C a ' +" Cr"? a+ ...........+" C - .d' + ---------...+" C -3°a".
ii) The (r + 1)th term [T ] in a binomial expansion of ((x + a)") is called the general term and it is
given by T1 = "Cx. a' (Osr5n).
The 4th term in the expansion of (2x + 3y) is
[ ]
a) 12150 x y
b) 15120 x y
c) 12150 x yé
d) 15120 xy
The number of terms in the expansion of (y + 5)*. where n is positive integer is
a) n + 1
b) na
c) 2n + 1
d) - +1
6.
7.
The coefficient of x 4 in
[
]
a) 8 2636
b) $C,2434
c) $C2335
86
Varsity Education Management Pvt. Ltd.​

Answer 1

Answer:

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