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Class 12 · Mathematics

On (A={1,2,3,4}), (a*b=\min(a,b)). What is the identity element?

Class 12 · Mathematics

On (A={1,2,3,4}), (a*b=\max(a,b)). Which is the identity element?

Class 12 · Mathematics

On (A={0,1,2,3}), (a*b) is the remainder when (a+b) is divided by (4). What is the inverse of (2)?

Class 12 · Mathematics

On positive real numbers, (a*b=\sqrt{ab}). Choose the correct conclusion about this operation.

Class 12 · Mathematics

On (\mathbb{Z}), (a*b=a+b-3). What is the inverse of (a) under this operation?

Class 12 · Mathematics

On (\mathbb{Z}), (a*b=a+b-3) is defined. Which statement is correct?

Class 12 · Mathematics

On (A=\mathbb{R}\setminus{-1}), (a*b=a+b+ab). What is the inverse of (a)?

Class 12 · Mathematics

On the set (A=\mathbb{R}\setminus{-1}), the operation (a*b=a+b+ab) is defined. What is the identity element?

Class 12 · Mathematics

On (A={1,2,4,8}), (a*b=\operatorname{lcm}(a,b)). Which statement is correct?

Class 12 · Mathematics

In (a*b=a+b+\lambda ab) on (\mathbb{R}), (\lambda=2). What is the inverse of (4)?

Class 12 · Mathematics

On (\mathbb{R}), (a*b=a+b+\lambda ab). Under which condition will the inverse of (a) exist?

Class 12 · Mathematics

If (a*b=a+b+\lambda ab) and (\lambda\neq0), what is the identity element?

Class 12 · Mathematics

On (\mathbb{R}), (a*b=a+b-3). What is the simplified form of (a*(b*c))?

Class 12 · Mathematics

On (\mathbb{R}), (a*b=a+b-3). What is the value of ((2*5)*7)?

Class 12 · Mathematics

On (\mathbb{R}), (a*b=a+b-3). What is the inverse of (8)?

Class 12 · Mathematics

On (\mathbb{R}\setminus{1}), (a*b=a+b-ab). What is the inverse of (3)?

Class 12 · Mathematics

On (A=\mathbb{R}\setminus{1}), (a*b=a+b-ab). Why is it closed on (A)?

Class 12 · Mathematics

On (\mathbb{R}), (a*b=a+b-ab). Is it associative?

Class 12 · Mathematics

On (\mathbb{R}), (a*b=a+b-ab). Is this operation commutative?

Class 12 · Mathematics

On (\mathbb{R}), (a*b=a+b-ab). For (a*b=0), what is (b) equal to?