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Prove that the inequations (2x+1)/(7x-1)...

Prove that the inequations `(2x+1)/(7x-1)>5`and `(x+7)/(x-8)>2`have no solutions

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UNITED BOOK HOUSE-NAVA NALANDA-EXERCISE
  1. If alpha and beta are different complex numbers with |beta|=1, then fi...

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  2. A question paper contains 12 questions divided into three parts.Parts...

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  3. Prove that the inequations (2x+1)/(7x-1)>5and (x+7)/(x-8)>2have no sol...

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  4. Exhibit graphically the solution region of the following system of 'in...

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  5. Prove that the product of the lengths of the perpendiculars drawn from...

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  6. Find the equation of a circle which touches both the axes and the line...

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  7. The focus of a parabola is (1,5)and its directrix is x+y+2=0.Find the...

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  8. 3(1-x) lt 2(x+4)

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  9. Prove that every function can be expressed as the sum of an -even and ...

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  10. A,B,C are three finite sets such that n(A)=17,n(B)=13,n(C)=15,n(AcapB)...

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  11. Draw the graph of f(x)=|x-1|+|x-2|.

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  12. Whats is the probability of arrangement of the letters of the word SOC...

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  13. The mean and standard deviation of 100 observations were calculated as...

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  14. Prove that tan6^@tan42^@tan66^@tan78^@=1

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  15. Solve :cos3x+cos2x=sin((3x)/2)+sin(x/2), (0lexlepi)

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  16. if (1-ix)/(1+ix)=a-ib,then prove that a^2+b^2=1(a,b x are real).

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  17. Solve graphically :|x-y|ge3.

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  18. How many different numbers of 4 digits each can be formed with the dig...

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  19. Solve :12x^4-56x^3+89x^2-56x+12=0

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  20. Show that the area of the triangle formed by the lines y = m(1) x + c(...

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