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If log(2)xy=5,log(1//2)(x//y)=1, then th...

If `log_(2)xy=5,log_(1//2)(x//y)=1`, then the values of `x,y` are

A

`(4,8)`

B

`(-4,8)`

C

`(4,-8)`

D

`(-4,-8)`

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A, B
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ML KHANNA-LOGARITHMS AND SURDS-Problem Set (2) (Multiple choice questions)
  1. If log(2)x+log(x)2=(10)/(3)=log(2)y+log(y)2 and xney then x+y =

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  2. If 2^(x)-2^(x-1)=4, then x^(x) is equal to

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  3. If log(2)xy=5,log(1//2)(x//y)=1, then the values of x,y are

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  4. If (log)(10)[1/(2^x+x-1)]=x[(log)(10)5-1] , then x= 4 (b) 3 (c) 2 ...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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