Question

Let * be a binary operation on the set Q of rational numbers defined by a*b =2a+b. Find 2*(3*4).​

Answer 1

Answer:

* be a binary operation on the set Q of rational numbers defined by a*b =2a+b

So

3*4 = 6+4=10

So

2*(3*4)

= 2*10

= 4+10

=14

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