
IIT JEE Entrance Exam
can you tell which is the best book for chemistry on for numerical bank from any international publisher?
can you tell which is the best book for chemistry on for numerical bank from any international publisher?

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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