If for x (0, 2 ), _ 10 x+ _ 10 x=-1 and _ 10 ( x+ x)= 1 2 ( _ 10 n-1), n 0, then the value of n is equal to...

Question

If for x (0, 2 ), _ 10 x+ _ 10 x=-1 and _ 10 ( x+ x)= 1 2 ( _ 10 n-1), n > 0, then the value of n is equal to :

Accepted Answer

(B)

JEE Main 2021 Mathematics question