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Write True or False:
The roots of the equation `x^2+x+1=0` are real.

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UNITED BOOK HOUSE-SUGGESSTION OR MADHYAMIK PARIKSHA-EXERCISE
  1. Write True or False: Ratio of capital of Riza and Sriza in a busines...

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  2. Write True or False x^3y,x^2y^2 and xy^3 are in continued proportion...

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  3. Write True or False: The roots of the equation x^2+x+1=0 are real.

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  4. Write True or False: Only one circle can be drawn through three coll...

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  5. Write True or False If the ratio of three sides of a triangle is 3:...

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  6. Write True or False Height, radius and slant height of a right circ...

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  7. Write True or False If the ratio of curved surface of two hemispher...

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  8. Write True or False: The value of cos54^@ and sin26^@ are equal.

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  9. Write True or False: in triangleABC,angleB= 90^@, if AB = BC then ...

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  10. Write True or False: Mode of 10,3,19,10,3,19 is 10.

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  11. Write True or False: Median of 3.5,7.5,9.5,2.5,6.5,5.5 is 6.

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  12. What is the rate of simple interest per annum, when the interest of so...

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  13. If the rate of increase in population is r% per year, the population a...

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  14. If x= 5+2sqrt6 then find the value of sqrtx+1/sqrtx.

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  15. If one of the common root of the quadracti equations x^2+bx+12=0 and ...

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  16. If x^2+y^2+z^2= xy+yz+zx then find the value of (x+y):z.

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  17. If 1/x-1/y alpha 1/(y-x), show that x alpha y.

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  18. Ratio of the area of two similar triangle is 16:25. find the ratio of...

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  19. Radii of two circles are 2 cm and 3 cm and the distance between the ce...

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  20. AOB is a diameter of a circle having centre.O. C is any point on it. I...

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