a) b) c) d) Correct answer is: b) Formula use: Explanation Here, given expression is According to the question Ans:

Formula use: Explanation Here, given expression is Ans:

a) b) c) d) correct answer is: a) Formula use: Explanation Here, given expression is Ans:

a) b) c) d) Correct answer is: c) Formula use: Explanation Here, given expression is [x – y = 6]Now, put the value of Ans:

a) b) c) d) correct answer is: d) Formula use: Explanation Here, given expression is [p – q = 2]Now, put the value of Ans:

a) b) c) d) correct answer is: d) Explanation Here, given expression is Now, put the value of Ans:

Formula use: Explanation Here, given expression isNow, put the value of [a=2]Ans: