# Factors of [1-(1/(a-b)²] will be :

(a) (1+a-b)(1-a+b)

(b) (1+a-b)(1+a+b)

(c) (1+a-b)(1-a-b)

(d) (1+a+b)(1+a+b)

**Answer: (a) (1 + a – b) (1 – a + b) **

(a) (1+a-b)(1-a+b)

(b) (1+a-b)(1+a+b)

(c) (1+a-b)(1-a-b)

(d) (1+a+b)(1+a+b)

**Answer: (a) (1 + a – b) (1 – a + b) **