
Grade 8IIT JEE Entrance Exam
how do we do maths in mind very faster because maths is not that much faster
how do we do maths in mind very faster because maths is not that much faster

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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