Is (7^7) / (7^X) an integer?
2 absolute(X) = X^2
Can someone explain this please?
stmnt1 tells us that x is b/w 0 and 7 but x can be fraction as well i.e. if x=1 then (7^7) / (7^X) is an integer
if x = 3/2 then (7^7) / (7^X) is not an integer. hence insuff
stmnt2 - |x| = x^2. only values of x satisfying this condition are -1,0,1. for all the 3 values (7^7) / (7^X) will be an integer. hence suff
NOTE: Its a yes/no question. we are not concerned with the value of expression