
Grade 12IIT JEE Entrance Exam
An ellipse having foci (3,1) and (1,1) passes through point (1,3) has the eccentricity?
An ellipse having foci (3,1) and (1,1) passes through point (1,3) has the eccentricity?

Let S={x:x belongs to R(√3+√2)^(x^2-4) - (√3-√2)^(x^2-4)=10}. Then n(S) is equal to-
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