DNU365 Date:29/06/2020
Questions: Total marks:25
In brackets() marks are shown:
1. If real number X is greater than or equal to zero than name all types of number which would exist for x ? ( 2)
2. How many rational number would lie between 1/√2 and 1/√3. (1)
3. If (2+√2)(2+√2)=a+b√2 than find 1/a√3+b√2 (4)
4. Represent √7on real line ... (3)
5. Rationalise : x+√x/x-√x . Does solution for this exist ? Give reason. (3)
6. If (√a+b)²= (a+√b)² and if a=9 find a/b...(4)
7. Write about all the numbers which lies on real axis with valid examples?..
Represent the numbers on real axis of each type. (4)
8 Verify 2×2=(4)
1.(a-b)(a+b)=a²-b²
2. X+√Y/X-√y= 3 if x=2 and y=1
.......Solution to be uploaded very soon on dnu....
DNU365: Date:30/06/20