1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

1.

2.

3.

4.  none of these

4

Explanation :
No Explanation available for this question

# The vector ai+bj+ck is a bisector of the angle between the vectors i+j and j+k if

1.  a = b

2.  a = c

3.  c = a+b

4.  a = b = c

4

a = c

Explanation :
No Explanation available for this question

# The vector equation of a straight line passes through

1.

2.

3.

4.  none of these

4

Explanation :
No Explanation available for this question

# The vector equation of a plane through

1.  α+β+γ=0

2.  α+β+γ=1

3.  α+β = γ

4.  α2+β2+γ2=1

4

α+β+γ=1

Explanation :
No Explanation available for this question

# If the vectors are coplanar,the value of ‘m’ is

1.  1

2.  -3

3.  -2

4.  2

4

-2

Explanation :
No Explanation available for this question

# f and h are functions from A→B, when a = {a, b, c, d}, B={s, t, u} defined as follows f (a) = t,f (b) = s,f(c) = s; f (d) = u,h(a) = s, h(b) = t; h(c) = s, h(a) = u, h(d) = u Which one of the following statement is t

1.  f and h are functions

2.  f is a function and h is not a function

3.  f and h are not functions

4.  none of these

4

f is a function and h is not a function

Explanation :
No Explanation available for this question

# If f(1)=1, n≥1;f(n+1)=2f(n)+1,then f(n) is

1.  2n+1

2.  2n

3.  2n-1

4.  2n-1-1

4

2<sup>n</sup>-1

Explanation :
No Explanation available for this question

# If n is a positive integer, n3+2n is divisible by

1.  6

2.  2

3.  3

4.  5

4

3

Explanation :
No Explanation available for this question

# Let Z be the set of integers and f : z→z be defined(x) = x2,xєz

1.  Bijection

2.  injection

3.  surjection

4.  none of these

4