Get 2 FREE Instant-Explanations on Filo with code FILOAPP

Let * be a binary operation defined on Q. Find if the followin

Question

Let $$ be a binary operation defined on $Q$ . Find if the following binary operation is associative.
$a b = \frac{ab}{4}$ for $a, b \in Q$

Views: 544 students

Found 7 tutors discussing this question

Samuel Discussed

Let

*

be a binary operation defined on

Q

. Find if the following binary operation is associative.

a * b = \frac{ab}{4}

for

a, b \in Q

12 mins ago

Discuss this question LIVE

12 mins ago

Text solutionVerified

For

*

to be associative

(a * b) * c = a * (b * c)

We have

L H S = (a * b) * c = (\frac{ab}{4}) * c = \frac{( \frac{ab}{4} ) c}{4} = \frac{ab c}{16} and

R H S = a * (b * c) = a * (\frac{b c}{4}) = \frac{a ( \frac{b c}{4} )}{4} = \frac{ab c}{16}

Thus

(a * b) * c = a * (b * c)

Hence

*

is associative.

Was this solution helpful?

150

Report

One destination to cover all your homework and assignment needs

Learn Practice Revision Succeed

Instant 1:1 help, 24x7

60, 000+ Expert tutors

Textbook solutions

Big idea maths, McGraw-Hill Education etc

Essay review

Get expert feedback on your essay

Schedule classes

High dosage tutoring from Dedicated 3 experts

Trusted by 4 million+ students

Stuck on the question or explanation?

Connect with our maths tutors online and get step by step solution of this question.

231 students are taking LIVE classes

Question Text	Let $$ be a binary operation defined on $Q$ . Find if the following binary operation is associative. $a b = \frac{ab}{4}$ for $a, b \in Q$
Answer Type	Text solution:1
Upvotes	150