Let *:RxR->R is defined as a*b=2a+b.Find \left ( 2*3 \right )*4

  • Option 1)

    14

  • Option 2)

    18

  • Option 3)

    22

  • Option 4)

    26

 

Answers (1)
H Himanshu

As we learnt

 

BINARY OPERATIONS -

 

A binary operation denoted by * on a set A is a function *: A × A → A.

-

 

 Given *:RxR->R

such that a*b=2a+b

On putting a=2 and b=3, we get

2*3=2(2)+3=4+3=7

\therefore(2*3)*4=7*4=2(7)+4=14+4=18.

 


Option 1)

14

Option 2)

18

Option 3)

22

Option 4)

26

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