Inequalities L-4 | Operations on Intervals (Part B) | By Naman Agarwal | JEE Mains and Advanced | CBSE

Let * be a binary operation of N given by a a*b=L C M\ (a , b) for all a , b in Ndot Find 5*7.

Let * be a binary operation on N given by a*b=2a+3b for all a ,\ b in N , then find: 5*4,\ 1*4 ,

Let * be a binary operation on set of integers I, defined by a*b=2a+b-3 . Find the value of 3*4 .

Let * be a binary operation on set of integers I , defined by a * b=2a+b-3 . Find the value of 3 * 4 .

If is an operation on integers such that a\ \ b=a-b-2, for all integers, a ,\ b . Then, 7\ \ (-4)= (a)11 (b) -9 (c) 9 (d) 1

A student has to answer 10 questions, choosing at least 4 from each of part A and B. If there are 6 questions in part A and 7 in part B. In how many ways can the student choose 10 questions?

Let * be a binary operation of N given by a * b=L C M\ (a , b) for all a , b in N . Find 5 * 7.

If the binary operation * on the set Z of integers is defined by a*b=a+3b^2, find the value of 2*4 .

Let * be a binary operation on set of integers I, defined by a*b=2a+b-3. Find the value of 3*4.