logx-22x2-10x+13 = 1; x=?
A.-3 B.-52 C. 52 D. 25 E. 3 or52
- If log2=m , then log85 =………
A. 1-m3m B.13m C. 3-mm D. 1-m3 E.3-mm
19.Solve logx×log12x+7 =1
A. 13 (or) -23 B. 25 (or) 23 C.-54 D.23 E. 23 ( or) -54
20.If log10x<0 , then
A. x<0 B.-1<x<0 C. -1<x<1 D. 0<x<1 E. x>1
- If log10x=0.35, then log10x=……….
A. -1.75 B.-0.175 C. 0.175 D. 3.5 E. 0.7
- Simplify logx+logx324logx
A.logx B.1 C.0 D.12logx E.2
- Solve the inequality xlog100.1>log1010.
A. x<-1 B. x<1 C. x>1 D. x>100 E. x>-1
- If logp+q= logp-logq , then p=……….
A. p=q=1 B. p=q1-q C. p=q21-q D. p= q1+q E. p=q21+q
25.If loga=5, logb =3, then the value of ab is
A. 53 B. 2 C. 8 D. log53 E.100
- Given that loga2 =0.301 and loga3 =0.477, then =……..
A. 0.125 B. -0.125 C. 0.301 D. -1.125 E. 1.125
- If 2logp8-logp4=2, then p=……….
A. 4 B. -4 C. 4 (or) 2 D. 4 (or) -4 E. 2
- log19x-1x+2 = 12; x=………
A. 12 B. 32 C. 52 D. 72 E. 92
- log39x-22= x+2 ; x=…………
A. log113 B. log311 C.log3 D.log11 E. 0
30.If log2=m, log3=n, then log720 =……….
A. m+n+1 B. 3m+n+1 C. 2m+3n+1 D. 3m+2
