Explanation

Explanation

• The set of complex numbers {1, i, -i, -1} under multiplication operation is a cyclic group.
• Two generators i and -i will covers all the elements of this group.
• Hence, it is a cyclic group.

Last verified on 04-06-2026

Explanation

Option C is right answer.

Last verified on 26-05-2026

Explanation

• x positive, y positive → First quadrant
• x negative, y negative → Third quadrant
• x positive, y negative → Fourth quadrant

Explanation

NOTE:

• If the question only says “all four sides are equal,” then the correct answer is a rhombus.
• If the question says “all four sides are equal, and all four angles are right angles (90°),” then the correct answer is Square.
• Example:
• Diamond shape ◇ = Rhombus
• Box shape □ = Square

Last updated by NA on 27 April 2026