Question

If (2^-1 + 4^-1 +6^-1 +8^-1)^x=1 then the value of x is _____________?​

Answer 1

Answer:

(2×1-1+4×1-1+6×1-1+8×1-1)

(2-1 +4-1+6-1+8-1)

(1+3+5+7)

16