The set of numbers, ...-4, -3, -2, -1, 0 1, 2, 3, 4..... is called _______.
Find the cardinal number of the following sets :
(i)A1={−2,−1,1,3,5}
(ii)A2={x:x∈ N and 3 ≤x<7}
(iii)A3={p:p ∈ W and 2p−3 < 8}
(iv)A4={b:b∈Z and −7< 3b−1 ≤2} Cardinal~Number~of~set~:The number of elements in a set is called its Cardinal Number.
Match the following:
Column AColumn B1. {x: x ∈ R, -5 < x ≤ 15 } A. 1 2.A=ThepowersetP(A)has––––––elements B.8 3.UniversasetofRationalNumbers&IrrationalNumbersC.RealNumbers4.No.ofelementsinPowerSetofA={a,b,c} D.Integers E.(−5,15] F.[−5,15)
If a and b are real numbers between 0 and 1 such that the points z1=a+i,z2=1+bi and z3=0 form an equilateral triangle, then