The equation of the line passing through the point (a cos3, a sin3?) and parallel to x cos ?-y sin ?=a is

1.  x cos +y sin ?=a cos 2? 

2.  x cos ?-y sin ?=a cos 2?

3.  xsin ?+y sin ?=a cos 2?

4.  none

View Answer  
4
Correct Answer :

x cos +y sin ?=a cos 2? 


Explanation :
No Explanation available for this question

The equation of the line perpendicular to the line x=3 and passing through (-4, 2) is

1.  y=2

2.  4x+5y-38=0

3.  3x-2y=0

4.  3x-2y-17=0

View Answer  
4
Correct Answer :

y=2


Explanation :
No Explanation available for this question

The equation of the line perpendicular to the line 2x+3y-5=0 and passing through (3, -4) is

1.  3x+2y-17=0 

2.  3x-2y+17=0   

3.  3x+2y+17=0 

4.  3x-2y-17=0

View Answer  
4
Correct Answer :

3x-2y-17=0


Explanation :
No Explanation available for this question

If (1, 2),(4, 3),(6, 4) are the midpoints of the sides BC,CA,AB of Δ ABC, then the equation of AB is

1.  2x-3y-13=0

2.  2x+3y-1=0  

3.  x-3y+6=0  

4.  x+3y+12=0

View Answer  
4
Correct Answer :

x-3y+6=0  


Explanation :
No Explanation available for this question

If (2, 1),(-1, -2),(3, 3) are the midpoints of the sides BC,CA,AB of Δ ABC, then the equation of AB is

1.   x-y=1/2  

2.  x+y=1  

3.  x-y=9   

4.  x=y

View Answer  
4
Correct Answer :

x=y


Explanation :
No Explanation available for this question

The area of triangles is 5 square unit. two it’s vertices are (2, 1),(3, -2) and the third vertex lies on the line y=x+3.The third vertex can be

1.  (7/2, 13/2) 

2.  (3/2, 3/2)  

3.  (7/2, -13/2)    

4.  (3/2, -3/2)

View Answer  
4
Correct Answer :

(7/2, 13/2) 


Explanation :
No Explanation available for this question

If t1,t2  and t3 are distinct, the points (t1, 2at1+at13),(t2,2at2+at

1.  t1 t2 t3=1

2.  t1+ t2+ t3= t1 t2 t3 

3.  t1+ t2+ t3=0   

4.  t1+ t2+ t3= -1

View Answer  
4
Correct Answer :

t1+ t2+ t3=0   


Explanation :
No Explanation available for this question

The medians AD and BE of the triangle with vertices A(0, b), B(0, 0) and C(a, 0) are mutually perpendicular if

1.  b=√2a    

2.  a=√2b

3.  b= -√2a  

4.   a=-√b

View Answer  
4
Correct Answer :

a=√2b


Explanation :
No Explanation available for this question

If x1,x2,x3  as well as y1,,y2 ,y3  are in G.P with same common ratio then the points P(x1,y1),Q(x2,y2) and R

1.  lie on straight line

2.  lie on an ellips

3.  lie on a circle 

4.  are vertices of a triangle

View Answer  
4
Correct Answer :

lie on straight line


Explanation :
No Explanation available for this question

The equation of the line having slope -4/3 and x-intercept -2/5 is

1.  3x-4y+20=0  

2.  2x-3y-14=0   

3.  8x+12y-9=0 

4.  20x+15y+8=0

View Answer  
4
Correct Answer :

20x+15y+8=0


Explanation :
No Explanation available for this question
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