( √a+√b)/√2=√(ab),求1/2a²+ab+1/2b²

问题描述:

( √a+√b)/√2=√(ab),求1/2a²+ab+1/2b²
(√a+√b)/√2=√(ab),求(1/2)a²+ab+(1/2)b²
打不出来√(ab)是开4次方

( √a+√b)/√2=√√(ab)( √a+√b)=(√2)(√√(ab))( √a+√b)²=((√2)(√√(ab)))²a+2√(ab)+b=2√(ab)a+b=0(1/2)a²+ab+(1/2)b²=(1/2)(a²+2ab+b²...