Question

For positive real number a and b , which is not true i) √ab =√a√b ii) (a+√b) (a-√b) =a^2-b iii) √a/b=√a/√b iv) (√a+√b) (√a-√b) =a+b​

Answer 1

Answer:

option 4 is wrong...........

Answer 2

Answer:

option (b) is correct one because it's written in the form of (a+b)(a-b) form so, that is a²-b² is correct answer

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