# 5 different Engineering,4 different Mathematics and 2 different Chemistry books are placed in a shelf at random. The probability that the books of each kind are all together is

1.  3!5!4!/11!

2.  ∠5∠6/∠11

3.  ∠3∠5∠4∠2/∠11

4.  ∠5∠4∠2/∠11

4

∠3∠5∠4∠2/∠11

Explanation :
No Explanation available for this question

# The equation to the conjugate hyperbola of xy+3x-4y+13=0 is

1.  (x-4)(y+3)=-25

2.  (x-4)(y+3)=25

3.  xy+3x-4y-13=0

4.  (x-4)(y+3)=0

4

(x-4)(y+3)=25

Explanation :
No Explanation available for this question

# A tangent to the parabola y2=4ax meets the axes at A and B.

1.  y2+2ax=0

2.  y2-2ax=0

3.  2y2+ax=0

4.  4y2+ax=0

4

2y2+ax=0

Explanation :
No Explanation available for this question

# Statement I : If f:A→B, g:B→C are such that gof is an injection, then f is an injection. Statement II : If f:A→B, g:B→C are su

1.  only I

2.  only II

3.  I&II

4.  Neither I nor II

4

only I

Explanation :
No Explanation available for this question

# If f(x)=px+q and g(x)=rx+s and f(g(x))=g(f(x))⇔

1.  f(p) =g(p)

2.  f(q)=g(q)

3.  f(s)=g(q)

4.  f(r)=g(p)

4

f(s)=g(q)

Explanation :
No Explanation available for this question

# If f(x) is a polynomial satisfying f(x)f(1/x)= f(x)+f(1/x),and f(3)=28 then f(4)=

1.  63

2.  65

3.  67

4.  68

4

65

Explanation :
No Explanation available for this question

# If tn

1.  4006/3006

2.  4003/3007

3.  4006/3008

4.  4006/3009

4

4006/3009

Explanation :
No Explanation available for this question

# If 5cosx + 12cosy=13 then the max value of 5sinx + 12siny is

1.  12

2.  √120

3.  √20

4.  13

4

√120

Explanation :
No Explanation available for this question

1.  0

2.  1

3.  1/2

4.  2

4

0

Explanation :
No Explanation available for this question

# Which of the following is correct

1.  tan1=tan2

2.  tan1=2/3(tan2)

3.  tan1>tan2

4.  tan1

4

tan1>tan2

Explanation :
No Explanation available for this question

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