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CMAT 2016 Solved Question Paper
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© examsnet.com
Question : 3
Total: 100
The length of a minor axis of the ellipse 16
x
2
+ 25
y
2
= 800 is
8
√
2
16
√
2
8
4
√
2
Validate
Solution:
(a) 16
x
2
+ 25
y
2
= 800
⇒
16
x
2
800
+
25
y
2
800
= 1
⇒
x
2
50
+
y
2
32
= 1
Here,
a
2
= 50 ⇒ a = 5
√
2
,
b
2
= 32 ⇒ b = 4
√
2
Length of minor axis =2b =2 x 4
√
2
= 8
√
2
© examsnet.com
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