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Fill in the blanks If the roots of a qu...

Fill in the blanks
If the roots of a quadratic equation `4x^2+12+c=0` are equal then c=___.

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UNITED BOOK HOUSE-PATRASAYER BAMIRA GURUDAS INSTITUTION, BANKURA-EXERCISE
  1. Fill in the blanks If the mean of n numbers x1,x2,x3,….,xn is barx t...

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  2. Fill in the blanks The height of a tower is 50sqrt3 metre. The angl...

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  3. Fill in the blanks If the roots of a quadratic equation 4x^2+12+c=0 a...

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  4. Fill in the blanks By melting a solid sphere, a solid right circular ...

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  5. In a business, the ratio of the capital of Rajus and Asif is 5:4 and i...

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  6. Write True or False If y alpha 1/x then y/x= non zero constant.

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  7. Write True or False If 0^@lealphale90^@then the minimum value of (s...

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  8. Write True or False The incentre and circumcentre of an equilateral t...

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  9. Write True or False If the length of radius of a sphere is doubled th...

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  10. Write True or False Mode of the data 2,3,9,10,9,3,9 is 10.

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  11. What is the rate of simple interest in percent per annum if the total ...

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  12. If sqrt3 sin theta+ cos theta = 2, then theta= ? (0^@lethetale90^@).

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  13. The price of machine decreased by 10% in each year. If the present pri...

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  14. If the sum of the roots of the equation x^2-x=K(2x-1) is zero, then fi...

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  15. In a partnership business, the ratio of the capitals of three partners...

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  16. If tan 3x.tan 3y = 1, then sin(x+y)=?

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  17. A circle with centre O, a point P is 25 cm away from the centre of th...

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  18. If x= (sqrt5+1)/2, show that x^2-x-1=0.

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  19. If the length of radius of a sphere is increased by 50%, then how much...

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  20. Find the value of overset(10)underset(i=1)sum(10xxi).

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