Trigonometry
Inverse Trigonometric Functions
MCQ (Single Correct Answer)Subjective
1
WB JEE 2008
MCQ (Single Correct Answer)
+1
-0.25

If 2y = x and 3y + 4x = 0 are the equations of a pair of conjugate diameters of an ellipse, then the eccentricity of the ellipse is

A
$$\sqrt {{2 \over 3}} $$
B
$$\sqrt {{2 \over 5}} $$
C
$$\sqrt {{1 \over 3}} $$
D
$$\sqrt {{1 \over 2}} $$
2
WB JEE 2008
MCQ (Single Correct Answer)
+1
-0.25

The equation of the ellipse having vertices at ($$\pm$$ 5, 0) and foci ($$\pm$$ 4, 0) is

A
$${{{x^2}} \over {25}} + {{{y^2}} \over {16}} = 1$$
B
$$9{x^2} + 25{y^2} = 225$$
C
$${{{x^2}} \over 9} + {{{y^2}} \over {25}} = 1$$
D
$$4{x^2} + 5{y^2} = 20$$
3
WB JEE 2008
MCQ (Single Correct Answer)
+1
-0.25

The latus rectum of an ellipse is equal to one-half of its minor axis. The eccentricity of the ellipse is

A
$${1 \over {\sqrt 6 }}$$
B
$${{\sqrt 3 } \over 2}$$
C
$${{\sqrt 3 } \over 4}$$
D
$${1 \over 2}$$
4
WB JEE 2009
MCQ (Single Correct Answer)
+1
-0.25

The total number of tangents through the point (3, 5) that can be drawn to the ellipse 3x2 + 5y2 = 32 and 25x2 + 9y2 = 450 is

A
0
B
2
C
3
D
4
WB JEE Subjects