<prompt> Kwa nambari halisi t 3, pata thamani ya chini zaidifractsqrtt - 3.  <response>: Hebu a sqrtt - 3. Kisha a2 t - 3, hivyo t a2 3. Kishafractsqrtt - 3 fraca2 3a a frac3a.Na AM-GM,a frac3a ge 2 sqrt3. Usawa hutokea wakati a sqrt3, au t 6, hivyo thamani ya chini ni 2 sqrt3. 