Click to Chat

1800-2000-838

+91-120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
VISHWESH RAVI Grade: 12th Pass
```

The greatest term of the expansion (2x + 5y)13 where x = 10, y = 2 is

1.

2.

3.

4.
None

The binomial expansion of n  N contain a term independent of x :

1.
only if k is an integers

2.
only if k is a natural numbers.

3.
only if k is rational

4.
for any real k.

The coefficient of x50 in (1 + x)41 (1 - x + x2)40 is

1.
1

2.
2

3.
3

4.
0

Given that the term of the expansion (x1/3 - x-1/2)15 which does not contain x is 5 m where m  N , then m =

1.
1100

2.
1010

3.
1001

4.
none

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 3 Solution:Ans: 3

Q. 8
In the binomial (21/3 + 3-1/3)n, if the ratio of the seventh term from the beginning of the expansion to the seventh term from its end is 1/6 , then n =

1.
6

2.
9

3.
12

4.
15

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 2 Solution:Ans: 2

Q. 9
The coefficient of x49 in the expansion of (x - 1) ..... is equal to

1.
- 2

2.
+ ve coefficient of x

3.
- ve coefficient of x

4.
- 2

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 1 Solution:Ans: 1

Q. 10
The last digit of (3P + 2) is : where P = 34n and n  N

1.
1

2.
2

3.
4

4.
5

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 4 Solution:Ans: 4

Q. 11
The sum of the binomial coefficients of  is equal to 256 . The constant term in the expansion is

1.
1120

2.
2110

3.
1210

4.
none

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 1 Solution:Ans: 1

Q. 12
The coefficient of x4 in  is :

1.

2.

3.

4.

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 1 Solution:Ans: 1

Q. 13
If (1 + x + x2)25 = a0 + a1x + a2x2 + ..... + a50 . x50 then a0 + a2 + a4 + ..... + a50 is :

1.
even

2.
odd & of the form 3n

3.
odd & of the form (3n - 1)

4.
odd & of the form (3n + 1)

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 1 Solution:Ans: 1

Q. 14
If the second term of the expansion  is 14a5/2 then the value of  is :

1.
4

2.
3

3.
12

4.
6

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 1 Solution:Ans: 1

Q. 15
If (1 + x) (1 + x + x2) (1 + x + x2 + x3) ...... (1 + x + x2 + x3 + ...... + xn)  a0 + a1x + a2x2 + a3x3 + ...... + amxm then  has the value equal to

1.
n!

2.
(n + 1) !

3.
(n - 1)!

4.
none

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 2 Solution:Ans: 2

Q. 16
The value of 4 {nC1 + 4 . nC2 + 42 . nC3 + ...... + 4n - 1} is :

1.
0

2.
5n + 1

3.
5n

4.
5n - 1

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 4 Solution:Ans: 4

Q. 17
In the expansion of (1 + x)43 if the co-efficients of the (2r + 1)th and the (r + 2)th terms are equal, the value of r is :

1.
12

2.
13

3.
14

4.
15

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 3 Solution:Ans: 3

Q. 18
The positive value of a so that the co-efficient of x5 is equal to that of x15 in the expansion of  is

1.

2.

3.
1

4.
2

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 1 Solution:Ans: 1

Q. 19
In the expansion of  , the term which does not contain x is :

1.
10C0

2.
10C7

3.
10C4

4.
none

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 3 Solution:Ans: 3

Q. 20
Co-efficient of t in the expansion of, ( + p)m - 1 + ( + p)m - 2 ( + q) + ( + p)m - 3 ( + q)2 + ...... ( + q)m - 1 where   - q and p  q is :

1.

2.

3.

4.

0 out of 4 marks (content provider)

Contributed by

Correct Answer: 2 Solution:Ans: 2

```
7 years ago

## Answers : (3)

VISHWESH RAVI
31 Points
```										answer soon. pls !!!!!!!!!!!!!! its urgent by VISHWESH RAVI
```
7 years ago
Badiuddin askIITians.ismu Expert
147 Points
```										Dear Vishesh
1:
first calculate
r= (n+1)/{1+(x/a)}
here n  = 13 , x= 2x = 2*10=20
a  = 5y=5*2=10
so r = 14/3
integer value r=4
so Tr+1 will be the greatest term
i.e   T5
now T5 = 13C4 209 104
please post seperate question in seperate post
Please feel free to post as many doubts on  our discussion forum as you can. If you find any question Difficult to  understand - post it here and we will get you the answer and detailed  solution very   quickly.   We are all IITians and here to help  you in your IIT JEE preparation.  All the best.   Regards, Askiitians Experts Badiuddin

```
7 years ago
VISHWESH RAVI
31 Points
```										thanks a lot sir for the solution.

PLEASE PAY ATTENTION TO MY OTHER ASKED QUESTIONS (WITH TITLE PLEASE HELP).
I WILL BE VERY GRATEFUL TO YOU FOR THIS KIND STEP.

THANKING YOU,
VISHWESH RAVI
```
7 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

## Other Related Questions on Algebra

View all Questions »
• Complete JEE Main/Advanced Course and Test Series
• OFFERED PRICE: Rs. 15,900
• View Details

## Ask Experts

Have any Question? Ask Experts

Post Question

Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details