Question

Taking U = [1, 5] A={ x|x in N x^ 2 -6x+5=0} , A' =​

Answer 1

Step-by-step explanation:

U = [1, 5] A={ x|x in N x^ 2 -6x+5=0} , A' =

Answer 2

Answer:

X={x:1≤x≤50,x∈N}

A={x:x is multiple of 2}

∴n(A)=25

B={x:x is multiple of 7}

∴n(B)=7

n(A∩B)=3

From question

n(A∪B)=n(A)+n(B)−n(A∩B)

                  =25+7−3

                  =29