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CBSE Class 12-science Answered

let *be a binary operation defined by a*b =3a +4b -2.find 4*5
Asked by Rashmi gondi | 07 Jan, 2014, 06:00: PM
answered-by-expert Expert Answer
a*b =3a +4b -2
So, 4*5 =3(4) +4(5) -2=12+20-2=32-3=30
Answered by | 07 Jan, 2014, 09:48: PM
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