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The number of real solutions of the equa...

The number of real solutions of the equation `log(-x)=2log(x+1)` is

A

none

B

one

C

two

D

three

Text Solution

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The correct Answer is:
B
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ML KHANNA-LOGARITHMS AND SURDS-Problem Set (2) (Multiple choice questions)
  1. If (log)(10)[1/(2^x+x-1)]=x[(log)(10)5-1] , then x= 4 (b) 3 (c) 2 ...

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  2. For agt0, ne 1 the roots of the equation log(ax)a+log(x)a^(2)+log(a^(2...

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  3. The number of real solutions of the equation log(-x)=2log(x+1) is

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  4. The equation (x^(2))/(1-|x-2|)=1 has

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  5. The equation (x^(2))/(|x-2|)=|(2x)/(x-2)|+|x| has solutions whose numb...

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  6. The roots of the equation |x^(2)-x-6|=x+2 are

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  7. The set of all real numbers x for which x^2-|x+2| +x gt 0 is

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  8. The number of real roots of the equation |x|^(2) -3|x| + 2 = 0, is

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  9. The sum of the roots of equation (x-4)^(2)-8|x-4|+15=0 is

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  10. Root(s) of the equatio 9x^(2) - 18|x|+5 = 0 belonging to the domain of...

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  11. The equation |x-x^(2)-1|=|2x-3-x^(2)| has

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  12. The sum of the real roots of the equation |x-2|^(2)+|x-2|-2=0 is

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  13. The product of real roots of the equation |3x-4|^(2)-3|3x-4|+2=0 is

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  14. The equation sqrt(x+1)-sqrt(x-1)=sqrt(4x-1) has a. no solution b. o...

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  15. The number of the integer solutions of x^(2)+9lt(x+3)^(2)lt8x+25 is

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  16. The solution set of the inequality log(x)((x+3)/(1-2x))gt1 is

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  17. The least positive integer x satisfying |x+1|+|x-4|gt7 is

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  18. Solve sqrt(x+3-4sqrt(x-1))+sqrt(x+8-6sqrt(x-1))=1

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  19. The number of values of x satisfying 1+log(5)(x^(2)+1)gelog(5)(x^(2)+4...

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  20. The number of solutions the equation |x+1|^(log(x+1)(3+2x-x^(2)))=(x-3...

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