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If 2x = sqrta+1/sqrta. Show that sqrt(x^...

If `2x = sqrta+1/sqrta`. Show that `sqrt(x^2-1)/(x-sqrt(x^2-1))(a-1)`

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UNITED BOOK HOUSE-MISCELLANEOUS EXERCISE-EXERCISE
  1. Find the square roots of- 8+2sqrt2-2sqrt5-2sqrt(10)

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  2. Find the square roots of- 1+x^2+ sqrt(1+x^2+x^4)

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  3. If 2x = sqrta+1/sqrta. Show that sqrt(x^2-1)/(x-sqrt(x^2-1))(a-1)

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  4. If (x+sqrt(x^2-bc))(y+sqrt(y^2-ca))(z+sqrt(z^2-ab)) = (x-sqrt(x^2-bc...

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  5. If x = (sqrt(a^2+b^2)+sqrt(a^2-b^2))/(sqrt(a^2+b^2)-sqrt(a^2-b^2)) sho...

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  6. If x>y prove that sqrt(y+sqrt(2xy-x^2))+sqrt(y-sqrt(2xy-x^2)) = sqrt(...

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  7. Solve for x, when sqrt(2x^2 + 9) + sqrt(2x^2 - 9) = 9 + 3sqrt7

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  8. Solve: (a+x)^(2//3)+2(a-x)^(2//3) = 3(a^2-x^2)^(1//3)

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  9. Find the area of a sector of a circle with radius 6 cm if angle of the...

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  10. If x prop y+z , y propz+x and z prop x+y, and the constant of variat...

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  11. If x,y,z be variable quantities such that (x+y+z) is constant and (z+x...

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  12. If x/y alphax+y and y/x alpha x-y, then show that x^2-y^2= constant.

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  13. The radii of two circles are 8 cm and 6 cm respectively. Find the diam...

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  14. If ax+by prop sqrt(xy), then show that (ax)^2+(by)^2 prop xy,

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  15. If y prop 1/x then show that x+y will be minimum when x=y.

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  16. If a^2+b^2+c^2 =16, x^2+y^2+z^2 = 25 and ax+by+cz = 20, then show tha...

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  17. At the starting of the year two friends Bhaskar and Indrajit starts a...

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  18. Samiran and Monojit start a business with a capital of Rs. 60,000 and ...

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  19. At the starting of the year two friends Bhaskar and Indrajit starts a...

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  20. The value of a machine depreciates at the rate of 10% every year.It wa...

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