三分之一×【10X0.7²+10×0.6²-根号（4.9×3.6）】×2.4
问题描述：
三分之一×【10X0.7²+10×0.6²-根号（4.9×3.6）】×2.4
答
=1／3×（4.9+3.6-4.2）×2.4
=1／3×4.3×2.4
=3.44
答
原式=1/3*（4.9+3.6-根17.64）*2.4
=1/3*（4.9+3.6-4.2）*2.4
=0.8*4.3
=3.44
答
(1/3)*[10*0.49+10*0.36-根号17.64]*2.4
=0.8*[4.9+3.6-4.2]
=0.8*4.3
=3.44
答
三分之一×【10X0.7²+10×0.6²-根号（4.9×3.6）】×2.4
=1／3×（4.9+3.6-4.2）×2.4
=1／3×4.2×2.4
=3.36