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FULL MARKS-DISCRETE MATHEMATICS-EXERCISE (12.1)
- Determine whether ** is a binary operation on the sets given below. ...
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- On Z, define ox by (m ox n) = m^(n) + n^(m) : AA m, n in Z. Is ox bina...
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- Let ** be defined on R by (a ** b) = a+b + ab -7. Is ** binary on R? I...
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- Let A={a + sqrt(5)b: a, b in Z}. Check whether the usual multiplicatio...
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- Define an operation * on Q as follows: a * b =((a+b)/(2)), a, b in Q. ...
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- Fill in the following table so that the binary operation ** on A={a,b,...
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- Let A =({:(1,0,1,0),(0,1,0,1),(1,0,0,1):}), B=({:(0,1,0,1),(1,0,1,0),(...
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- (i) Let M={({:(x,x),(x,x):}):x in R -{0}} and let ** be the matrix mul...
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- Let A be Q/{1}. Define * on A by x * y=x+y-xy. Is * binary on A? If so...
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