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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

High School Mathematics - 2
5.2 Laws of Binary Operations

Directions: Answer the following.
Q 1: Let A = N x N and let * be a binary operation on A defined by (a,b)*(c,d) = (ac, bd). Show that (A,*) is associative.

Q 2: Let a * b be a binary operation on N given by a * b = l.c.m (a,b), a, b, N, find 2*4

Q 3: For I = (-2,-1,0,1,2) and the binary operation of addition defined on I, ehat is the inverse of -2.

Q 4: Let * be a binary operation defined on Q. Check if a*b = a2+b2, for a,b Q is commutative.

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Question 6: This question is available to subscribers only!

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