Opp900set

W7 E.1
4.288 + 200 + 392 =……..
A.202 B.162 C.102 D.82 E.42

                    p times

1. Simplify a×a×a……aa+a+a+⋯a
   p terms
   A.ap-1p B.pap2 C.app-2 D.p2 E.1
2. The value of 2-1-1-1is
   A.2 B.-2 C.-12 D.14 E.12
   7.532532 =…….
   A.1 B.0 C.25 D.125 E.625
   8.-1-1 +-10 =……….
   A. 2 B.1 C.0 D. -1 E.-2
3. Which of the following is (are) false?
   1.a+b2 =a2 +b2 2.a+b =a +b 3.(ab)2 =a2b2
   A.1 only B. 2only C. 3 only D. 1 and 2 only E. None of these
   10.a2+b22a+ba-b2 =………….
   A.(a+b)3 B.(a-b)3 C.(a-b)(a+b) D.(a-b)2 (a+b) E.(a-b)(a+b)3
   11.If 152x+1=1 ,then x=……….
   A. -1 B. 0 C. 12 D. -12 E.-2
4. If (0.2)x=125 , then x=………
   A. -3 B.0 C.3 D.4 E.5
5. If 4x+1=8x, then x=……..
   A. -3 B.-2 C.-1 D.1 E.2
   14.If 3x+1=8x+1, then x=……….
   A.0 B. -1 C.1 D.12 E. None of above
   15.(-4)-1+(-1)-4=……….
   A. -2 B.-4 C.34 D.-34 E.-114
6. 0.2-2 =……..
   A. 0.4 B.0.004 C.4 D.5 E.125
7. Which of the following is (are) true?