# If x2y-x3(dy/dx)=y4cosx then x3y is equal to

1.  sin x

2.  2 sin x + c

3.  -3 sin x + c

4.  3 cos x +c

4

-3 sin x + c

Explanation :
No Explanation available for this question

1.  22.5

2.  24.5

3.  28.5

4.  32.5

4

22.5

Explanation :
No Explanation available for this question

1.  7

2.  -6

3.  5

4.  4

4

7

Explanation :
No Explanation available for this question

# Observe the following statements:

1.  Both I and II are true

2.  Neither I nor II is true

3.  I is true, II is false

4.  II is true, I is false

4

I is true, II is false

Explanation :
No Explanation available for this question

# If (dy/dx)=[y+xtan(y/x)]/x then sin(y/x) is equal to

1.  cx2

2.  cx

3.  cx3

4.  cx4

4

cx

Explanation :
No Explanation available for this question

# If log27 (log3 x) = 1/3, then the value of x is :

1.  3

2.  6

3.  9

4.  27

4

27

Explanation :
No Explanation available for this question

# S1, S2,....., S10 are the speakers in a conference. If S1 addresses only after S2, then the number of ways the speakers address is :

1.  10!

2.  9!

3.  10 x 8 !

4.  (10!)/2

4

(10!)/2

Explanation :
No Explanation available for this question

# The number of possitive odd divisors of 216 is

1.  4

2.  6

3.  8

4.  12

4

4

Explanation :
No Explanation available for this question

# Coefficient of x10 in the expansion of (2 + 3x) e-x is :

1.  -26/(10!)

2.  -28/(10!)

3.  -30/(10!)

4.  -32/(10!)

4

-28/(10!)

Explanation :
No Explanation available for this question

1.  -2

2.  -1

3.  1

4.  2

4