Question

State which of the following sets is singleton sets.

i) A = {x/√ = 16} ii) B = {y/y2 = 49 iii) C = {p/(p – 4)2 = 0​

Answer 1

Answer:

A={+4,-4}

B={2401}

B is Singleton set

(p-4)^2=0

p^2-8p+16=0

p^2-4p-4p+16=0

p(p-4)-4(p-4)=0

(p-4)(p-4)=0

p=4,p=4

C={4}

C is Singleton set