Find three rational numbers between x(y - z)-¹ and x(y-¹-z-¹),
given that x = 2/5,y=1/6,z=1/8.
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Answer:
x×(y×z)
=1×(
2
−1
×
4
1
)
=1×(
8
−1
)
=
8
−1
(x×y)×z
=(1×
2
−1
)×
4
1
=
2
−1
×
4
1
=
8
−1
So x×(y×z)=(x×y)z
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