if p = -8/27 , q = 3/4 and r = -12/15 , them verify that : p x (q x r) = ( p x q) x r
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Step-by-step explanation:
p * (q * r) = ( p * q) * r
L.H.S = p * (q * r)
= -8/27 * (3/4 * -12/15)
= -8/27 * ( -3/5)
= 8/45
R.H.S = (p * q) * r
= (-8/27 * 3/4) * -12/15
= (-2/9) * -12/15
= 8/45
Hence, verify L.H.S = R.H.S
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