1.

x × (y×z) = (x×y) ×zx=7/3 , y=12/5 , z=4/9

Answer»

x*(y*z)=7/3*(12/5*4/9)=7/3*(4/5*4/3)=7*16/3*15=112/15and(x*y)*z=(7/3*12/5)*4/9=112/15hence verified



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