Question
The eccentricity of the ellipse 9x2 + 5y2 – 30y = 0 is
- none of these
Hint:
Standard form of ellipse = 
The correct answer is:
Given :
Thus, the eccentricity of the ellipse 
is
Related Questions to study
The sum of all possible numbers greater than 10,000 formed by using {1,3,5,7,9} is
The sum of all possible numbers greater than 10,000 formed by using {1,3,5,7,9} is
Number of different permutations of the word 'BANANA' is
In this question, one might think that the total number of permutations for the word BANANA is 6!
This is wrong because in the word BANANA we have the letter A repeated thrice and the letter N repeated twice.
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into 
is
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then A-B=
, then 
then K=
when divided by 
and 
are 7,3 then the remainder of 
is
then 
are
