Question

18. Which of the following is correct
(i) ab – a – b + 1 = (1 – a)(1 – b)
(ii) ab – a – b + 1 = (a – 1)(b – 1)
(iii) ab – a – b + 1 = (1 – a)(b – 1)
(iv) ab – a – b + 1 = (a – 1)(1 – b)

Answer 1

Step-by-step explanation:

correct answer is option no. 2