Question

If A is a square matrix of order 3 having a row of zeros, then the determinant of A is *

1)1

2)0

3)3

4)-2



#. Which of the following is not true? *

1)A polynomial function is always continuous

2)A continuous function is always differentiable

3)A differentiable function is always continuous

4)None of these
#. The determinant of a skew symmetric matrix of odd order is *

0

1

-1

None of these


#If A is a square matrix of order 2, then det(-3A) is *

3 det A

-3 det A

9 det A

-9 det A



#. The equation of the normal to the curve y=sin⁡x at the point (π,0) is : *

x+y=π

x+y+π=0

x-y=π

x-y+π=0




#. If the system of the equations x-ky-z=0, kx-y-z=0, x+y-z=0 has a non-zero solution, then the possible values of k are: *

1)-1, 2

2)1, 2

3)0, 1

4)-1, 1

16. A ladder 5 metres in length is resting against vertical wall. The bottom of the ladder is pulled along the ground away from the wall at the rate of 1.5 m/sec. When the foot of ladder is 4.0 metres away from the wall , the rate of decrease of the height on the wall is: *

1)2 m/sec

2)3 m/sec

3)2.5 m/sec

4)1.5 m/sec

17. The area bounded by the curve y=sin x between x=0 and x=2π is *

1)2 sq. units

2)4 sq. units

3)8 sq. units

4)None of these




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Answer 1

Answer:

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