Let H:a2x2−b2y2=1, where a>b>0, be a hyperbola in the xy-plane whose conjugate axis LM subtends an angle of 600 at one of its vertices N. Let the area of the triangle LMN be 43.
LIST-I
LIST-II
P.
The length of the conjugate axis of H is
1.
8
Q.
The eccentricity of H is
2.
34
R.
The distance between the foci of H is
3.
32
S.
The length of the latus rectum of H is
4.
4
The correct option is:
(A)P→4;Q→2;R→1;S→3
(B)P→4;Q→3;R→1;S→2✓ Correct
(C)P→4;Q→1;R→3;S→2
(D)P→3;Q→4;R→2;S→1
Answer: (B)
Solution
From the geometry, the conjugate axis LM has length 2b and subtends 60° at vertex N(a,0). The triangle LMN has base 2b and height a: