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The sum of all the solutions to the equa...

The sum of all the solutions to the equations `2log_(10)x-log_(10)(2x-75)=2`

A

30

B

350

C

75

D

200

Text Solution

Verified by Experts

The correct Answer is:
D
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ALLEN-BASIC MATHS,LOGARITHIM, TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION -EXERCISE (O-1)
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  2. Let x= 2^(log 3) and y=3^(log 2) where base of the logarithm is 10,the...

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  7. The number N = 6 log(10) 2+ log(10) 31 lies between two successive in...

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  8. Number of real solution(s) of the equation |x-3|^(3x^2-10x+3)=1 is :

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  9. The solution set of the inequality log(5/8)(2x^(2)-x-3/8) ge1 is-

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  10. Solution set of the inequality, 2-log(2)(x^(2)+3x) ge0 is-

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  11. If (log(1/3))(3x-1)/(x+2) is less than unity, then 'x' must lie in the...

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  12. if sin x + sin^2 x = 1, then the value of cos^2 x + cos^4x is

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  13. The value for 2(sin^6theta+cos^6theta)-3(sin^4theta+cos^4theta)+1 is

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  14. If tanA=-1/2 and tanB=-1/3, (where A, B gt 0), then A+B can be

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  15. The value of cos^(2)48^(@)-sin^(2)12^(@) is

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  16. The expression (sin8thetacostheta-sin6thetacos3theta)/(cos2thetacosthe...

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  17. If 3sinalpha=5sinbeta, then (tan((alpha+beta)/2))/(tan((alpha-beta)/2)...

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  18. (sin(A-C)+2sinA+sin(A+C))/(sin(B-C)+2sinB+sin(B+C)) is equal to-

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  19. (1+sin2theta+cos2theta)/(1+sin2theta-cos2theta)=

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  20. If A=tan6^0tan42^0 and B=cot66^0cot78^0 , then

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