Question

решить неравенство 2^(x-1)+2^(x+3)>17

Answer 1

2^(x-1)+2^(x+3>17   2^x*2^(-1)+2^x*2^3>17   2^x(1/2+8)>17  2^x(17/2)>17  2^x/2>1
2^(x-1)>1 2^(x-1>2^0  x-1>0  x>1