1.

If x = 1/2 , y = 5/−4 , z = −7/5 ,Verify that x × (y × z) = (x × y) × z

Answer»

Step-by-step EXPLANATION:x * (y*z) = 1/2   x  ( 5/-4  x  -7/5)             =  -35/-40 =>  7/8 -----------(i)       (as (-) SYMBOL gets canceled) (x*z)*y = (1/2   x   -7/5)   x  5/-4            = 7/8  ----------------(ii)   from (i) and (ii) we GETX (y*z) = (x*z)y



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