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If x=3 is one root of the quadratic equa...

If x=3 is one root of the quadratic equation `x^2-2kx-6=0`, then find the value of k

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    X BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise SECTION-C|5 Videos

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X BOARD PREVIOUS YEAR PAPER ENGLISH-X Boards-All Questions
  1. What is the value of (cos^2 67^@-sin^2 23^@)?

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  2. Find the distance of point P(x,y) from the origin

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  3. If x=3 is one root of the quadratic equation x^2-2kx-6=0, then find th...

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  4. What is the HCF of the smallest prime number and the smallest composit...

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  5. The mean of the following distribution is 18. Find the frequency f of ...

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  6. In an A.P., if the common difference (d)=-4 and the seventh term (a7) ...

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  7. An integer is chosen at random between 1 and 100. Find the probability...

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  8. Two different dice are tossed together. Find the probability (i) of ...

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  9. Find the ratio in which (4,m) divides the line segment joining A(2,3) ...

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  10. A bucket open at the top, and made up of a metal sheet is in the form ...

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  11. Given that sqrt(2) is a irrational prove that (5+3sqrt(2)) is an irrat...

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  12. Find the sum of first 8 multiples of 3.

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  13. As observed from the top of a 100 m high lighthouse from the sea level...

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  14. A motor boat whose speed is 18 km/h in still water takes 1 hour more...

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  15. While boarding an aeroplane, a passenger got hurt. The pilot showing p...

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  16. A train travels at a certain average speed for a distance of 63km and ...

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  17. Prove that the area of equilateral triangle described on the side of a...

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  18. In an equilateral triangle ABC, D is a point on side BC such that B D=...

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  19. (Pythagoras's Theorem) Prove by vector method that in a right angled...

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  20. If the areas of two similar triangles are equal, prove that they ar...

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