Verify the associative property of multiplication (a x b) xc = ax (bx c) for the given values of a = (- 3/8), b = 4/5, c = (- 20/21)
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Answer:
It is given that,
a = 3/4, b = -1/2, c = -7/5
LHS = a × ( b × c )
= 3/4 × [(-1/2 ) × (-7/5)]
= 3/4 × (7/10)
= ( 3 × 7 )/ ( 4 × 10 ) X X
= 21/40 ----(1)
RHS = (a × b ) x c
= [ 3/4 × (-1/2) ] × (-7/5)
= [-3/8 ] × (-7/5 )
= (3x7) / (8 x 5)
= 21/40 -----(2)
From (1) and (2),
LHS = RHS
a × ( b × c ) = (a × b ) × c
[Associative proporty under
multiplication]
Answered by
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Answer:
Step-by-step explanation:
[(- 3/8).4/5] (-20/21)=(- 3/8)[4/5 (-20/21)]
-3/10 (-20/21) = (- 3/8)(-16/21)
2/7 = 2/7
(a x b) xc = ax (bx c)
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