The document Hots Questions - Number System Class 9 Notes | EduRev is a part of the Class 9 Course Mathematics (Maths) Class 9.

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**Question 1. Find the value of **

**Solution:****Since **

**Question 2. If **** = 1.4142 then find the value****Solution**: Rationalising the denominator of , we get

........ (1)

**Question 3. Find the value of 'a' in ****Solution:****L.H.S. = **** **

| using (a+b) (a-b) = a^{2}-b^{2}

since, L.H.S. = R.H.S.

**Question 4. Find the value of 'a' and 'b'****Solution:**

Since, L.H.S. = R.H.S

⇒ a = 0 and b = 1**Question 5. If ** , then find the value of

**Solution:**

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