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Question(s) from Search: IIT

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1

The number of distinct real values of λ for which   are coplanar is

a) Zero

b) One

c) Two

d) three

The number of distinct real values of λ for which   are coplanar is

a) Zero

b) One

c) Two

d) three

IIT 2007
03:01 min
2

If , then  

a) True

b) False

If , then  

a) True

b) False

IIT 1980
04:29 min
3

If in the expansion of (1 + x)m (1 – x)n, the coefficients of x and x2 are 3 and –6 respectively. then m is

a) 6

b) 9

c) 12

d) 24

If in the expansion of (1 + x)m (1 – x)n, the coefficients of x and x2 are 3 and –6 respectively. then m is

a) 6

b) 9

c) 12

d) 24

IIT 1999
04:34 min
4

If  then  at x = e is .  .  .

a) 0

b)

c) e

d) 1

If  then  at x = e is .  .  .

a) 0

b)

c) e

d) 1

IIT 1985
01:35 min
5

If  then the expression for  in terms of  is

a)

b)

c)

d)

If  then the expression for  in terms of  is

a)

b)

c)

d)

IIT 2003
01:32 min
6

Multiple choice

Which of the following expressions are meaningful

a)

b)

c)

d)

Multiple choice

Which of the following expressions are meaningful

a)

b)

c)

d)

IIT 1998
01:15 min
7

If  then at x = 0,  is equal to

a) 0

b) 1

c) 2

d) 4

If  then at x = 0,  is equal to

a) 0

b) 1

c) 2

d) 4

IIT 1996
02:05 min
8

is equal to

a) 0

b) 4

c) 6

d) −4

is equal to

a) 0

b) 4

c) 6

d) −4

IIT 2004
03:15 min
9

Find all values of λ such that  and

 where  are unit vectors along the coordinate vectors.

Find all values of λ such that  and

 where  are unit vectors along the coordinate vectors.

IIT 1982
04:48 min
10

The complex numbers sinx + icos2x and cosx – isin2x are conjugate to each other for

a) a = nπ

b) x = 0

c) x =  

d) None of these

The complex numbers sinx + icos2x and cosx – isin2x are conjugate to each other for

a) a = nπ

b) x = 0

c) x =  

d) None of these

IIT 1988
02:59 min
11

Suppose  is an identity in x where  are constants and . Then the value of n = ……….

a) 4

b) 5

c) 6

d) 7

Suppose  is an identity in x where  are constants and . Then the value of n = ……….

a) 4

b) 5

c) 6

d) 7

IIT 1981
02:56 min
12

Prove that  is divisible by 25 for any natural number n.

Prove that  is divisible by 25 for any natural number n.

IIT 1982
03:55 min
13

Evaluate   where n is a positive integer and t is a parameter independent of x.

a)

b)

c)

d)

Evaluate   where n is a positive integer and t is a parameter independent of x.

a)

b)

c)

d)

IIT 1981
05:47 min
14

Let OABC be a parallelogram with O as the origin and OC a diagonal. Let D be the midpoint of OA. Using vector method, prove that BD and CO intersect in the same ratio.

Let OABC be a parallelogram with O as the origin and OC a diagonal. Let D be the midpoint of OA. Using vector method, prove that BD and CO intersect in the same ratio.

IIT 1988
04:37 min
15

For positive integers n1 and n2 the value of the expression  where  is real if and only if

a)

b)

c)

d)

For positive integers n1 and n2 the value of the expression  where  is real if and only if

a)

b)

c)

d)

IIT 1995
04:45 min
16

 is equal to

a) 0

b)

c)

d) None of these

 is equal to

a) 0

b)

c)

d) None of these

IIT 1984
01:15 min
17

Find the area bounded by the X - axis, part of the curve  and the ordinate at x = 2 and x = 4. If the ordinate at x = a divide the area into two equal parts, find a,

a)

b)

c)

d)

Find the area bounded by the X - axis, part of the curve  and the ordinate at x = 2 and x = 4. If the ordinate at x = a divide the area into two equal parts, find a,

a)

b)

c)

d)

IIT 1983
06:17 min
18

Determine the value of c so that for all real x the vector cx and  make an obtuse angle with each other.

Determine the value of c so that for all real x the vector cx and  make an obtuse angle with each other.

IIT 1991
03:25 min
19

The equation  has

a) No solution

b) One solution

c) More than one real solution

d) Cannot be said

The equation  has

a) No solution

b) One solution

c) More than one real solution

d) Cannot be said

IIT 1980
01:57 min
20

The value of  is   

a) 1

b) – 1

c) 0

d) None of these

The value of  is   

a) 1

b) – 1

c) 0

d) None of these

IIT 1991
02:34 min
21

Evaluate

a)

b)

c)

d)

Evaluate

a)

b)

c)

d)

IIT 1986
05:55 min
22

The number of solutions of the equation

a) 0

b) 1

c) 2

d) Infinitely many

The number of solutions of the equation

a) 0

b) 1

c) 2

d) Infinitely many

IIT 1990
01:46 min
23

 

a) exists and equals

b) exists and equals

c) does not exist because x – 1 → 0

d) does not exist because the left hand limit is not equal to the right hand limit.

 

a) exists and equals

b) exists and equals

c) does not exist because x – 1 → 0

d) does not exist because the left hand limit is not equal to the right hand limit.

IIT 1998
03:32 min
24

The number of values of x in the interval (0, 5π) satisfying the equation  is

a) 0

b) 5

c) 6

d) 10

The number of values of x in the interval (0, 5π) satisfying the equation  is

a) 0

b) 5

c) 6

d) 10

IIT 1998
03:17 min
25

Find the natural number a for which
 
where the function f satisfies the relation f (x + y) = f (x).f(y)for all natural numbers x and y and further f (1) = 2

Find the natural number a for which
 
where the function f satisfies the relation f (x + y) = f (x).f(y)for all natural numbers x and y and further f (1) = 2

IIT 1992
06:01 min

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