cet stu d8

A. y^(1/2) B. y^(3/2) C.y^(5/4) D.y^(5/8) E.y^(7/8)

1. x-2+y-2=……..
   A.(x+y)-2 B. (xy)-2 C. (x2+y2)(xy)-2 D.x2+y2 E. (xy)(x+y)-2
   20.If x4 =10, what is x6?
   A.10√10 B.100 C.100 √10 D.1000 E.1000√10
   21.(0.1)3+ √0.000004 =……….
   A.0.3 B.0.2001 C.0.1002 D.0.021 E.0.003

2. If x=√5 + 2 and y= √(5 )- 2 ,then x2+y3=……….
   A.1 B.9 C.18 D.4√5 E.8√5

3. 5x+5x+1=150. then x=………..
   A.2 B.1 C.0 D.-1 E. -2

4. If (√7+√3)/x = x/(√7+√3) , then x=……….
   A. 2 B.-2 C.4 D.-4 E. 2 or -2

5. If √2 =1.41 and √3 =1.73 , then the value of √8 +√12 =……..
   A. 2.82 B.3.14 C.4.28 D.6.28 E.3.46

6. (√2)^3x= 1/8 , then x=……..
   A.-2 B.-3 C.2 D.-6 E.6

   A.-1 B. -1/3 C.1/3 D.1 E.3

7. (√3+1)/(√3-1) - (√3-1)/√3 =………
   A. 0 B. 1/2 C. 3 D.2√3 E. 1/2+2√3

8. If x + 1/x =1+√3 , then x2 +1/x^2 =………….
   A. 1 B. 4 C. 1+2√3 D.2+2√3 E. 3+2√3

9. If 4×2x-4^x=0, then x=……….
   A.-2 B.-1 C.0 D.1 E.3

10. 1/(1+√2) + 1/(√2+√3) +1/(√3+ √4) +1/(√4+ √5) =……..
    A.1/(1-√5) B.1/(√6-1) C. 1+√5 D.1-√5 E. -1+√5

11. Simplify √a/(√a+√b) - √b/(√a-√b)
    A.1/(√a- √b) B. (a-2√ab-b)/(√a- √b) C.(a-2√ab-b)/(a-b) D. (a+2√ab-b)/(a-b) E. (a+b)/(a-b)
    38.√18+√(6&2^3 ) =………
    A. 3∛2 B. √2 C. 4√2 D. 2√2 E.3