1.   250 Cos2x  

2.  - 250 Cos2x

3.  - 250 Sin2x 

4.  250 Sin2x

View Answer  
4
Correct Answer :

- 250 Cos2x


Explanation :
No Explanation available for this question

1.  8

2.  6

3.  -4

4.  1

View Answer  
4
Correct Answer :

8


Explanation :
No Explanation available for this question

If the curve y=x2 + bx + c touches the line y=x at the point (1, 1), then the set of values of ‘x’ for which the curve has a negative gradient is

1.   (1/2, x)  

2.  (-1/2, x)

3.  (x, ½)

4.  (-x, -1/2)

View Answer  
4
Correct Answer :

(x, ½)


Explanation :
No Explanation available for this question

1.   3√5, 5√5  

2.  5√3, 3√3

3.  5√2, 3√2

4.  5, 3

View Answer  
4
Correct Answer :

5√2, 3√2


Explanation :
No Explanation available for this question

1.   a = 0 

2.  a = -1

3.  a = 2

4.  a = 3

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4
Correct Answer :

a = 3


Explanation :
No Explanation available for this question

An ellipse with the eccentricity e=1/2 has a focus at (0, 0) and the corresponding directrix is x+6=0.  The equation of the ellipse is

1.  3x2+4y2+12x-36=0

2.  3x2+4y2-12x+36=0

3.  3x2+4y2-12x-36=0

4.  none

View Answer  
4
Correct Answer :

3x2+4y2-12x-36=0


Explanation :
No Explanation available for this question

The amount of the ellipse whose focus is (3, -2), eccentricity 3/4 and difference 2x-y+3=0 is

1.  14x2+33xy+ 17y2-255x+74y+159=0

2.  44x2+36xy+71y2-588x+374y+959=0

3.  4x2+56xy+271y2-188x+274y+359=0

4.  44x2-36xy-71y2-588x-374y-959=0

View Answer  
4
Correct Answer :

44x2+36xy+71y2-588x+374y+959=0


Explanation :
No Explanation available for this question

The equation of ellipse whose focus is (0, √a2-b2), directrix is y=a2/√a2-b2 and eccentricity is √a2-b2/a is

1.  x2/a2+y2/b2=1

2.  x2/b2+y2/a2=1

3.  x2/a2+y2/b2=2

4.  x2/b2+y2/a2=2

View Answer  
4
Correct Answer :

x2/b2+y2/a2=1


Explanation :
No Explanation available for this question

The equation of the ellipse with its axes as the coordinate axes respectively, the length of latus rectum is 15 and distance between the foci 10 is

1.   x2/100+y2/75=1

2.  x2/75+y2/100=1

3.  x2/50+y2/25=1

4.  x2/25+y2/50=1

View Answer  
4
Correct Answer :

x2/100+y2/75=1


Explanation :
No Explanation available for this question

If the angles of elevation of the top of a tower from the top and foot of a pole height 10 mt are 300 and 600 then the height of the tower is

1.  12 mt

2.  15 mt

3.  20 mt

4.  36 mt

View Answer  
4
Correct Answer :

15 mt


Explanation :
No Explanation available for this question
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