Home
Class 12
MATHS
Let A={a + sqrt(5)b: a, b in Z}. Check w...

Let `A={a + sqrt(5)b: a, b in Z}`. Check whether the usual multiplication is a binary operation on A.

Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER- 10 (UNSOLVED)

    FULL MARKS|Exercise (PART-IV) IV. Answer all the questions.|7 Videos

  • SAMPLE PAPER- 10 (UNSOLVED)

    FULL MARKS|Exercise (PART-II) II. Answer any seven questions. Question No. 30 is compulsory.|8 Videos

  • SAMPLE PAPER 03

    FULL MARKS|Exercise PART IV|14 Videos

  • SAMPLE PAPER-09 (UNSOLVED)

    FULL MARKS|Exercise PART-IV (IV. Answer all the questions. )|15 Videos

Similar Questions

Explore conceptually related problems

Check whether A-B= A cap B'

Check whether the following sequences are in A.P or not? z-1,z-3,z-5...

Check whether the equations are quadratic or not? (2x+1)(3x+1)=b(x-1)(x-2)

Check whether the following sequences are in A.P. a-3, a-5, a-7, …

The operation ** defined by a ** b =(ab)/7 is not a binary operation on