At absolute zero, Si acts as
(a) Non-metal
(b) Metal
(c) Insulator
(d) None of these
At absolute zero, Si acts as
(a) Non-metal
(b) Metal
(c) Insulator
(d) None of these

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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