whose centre is (4, 5), radius is 7; (ii) whose centre is (0,- 4) and which touches the x-axis ;
(i) which passes through the origin and cuts off intercepts of length “a', each from positive
(i)
1. Find the equation of the circle
direction of the axes.
Answers
Answered by
1
Answer:
Answer
Vertices(±5,0)Foci(±7,0)
a=±5 and ae=±7
And e=
5
7
We know e=
1+
a
2
b
2
On squaring both sides we get:
e
2
=1+
a
2
b
2
Or
25
49
=1+
25
b
2
Or
25
b
2
=
25
24
b
2
=24
The equation of hyperbola is
25
x
2
−
24
y
2
=1
24x
2
−25y
2
=600
Hence, Option [A] and [C] are correct.
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