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If (a^2+b^2)x^2+2(ac+bd)x+c^2+d^2=0 has ...

If `(a^2+b^2)x^2+2(ac+bd)x+c^2+d^2=0` has no real root

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

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Prove that the equation x^2(a^2+b^2)+2x(a c+b d)+(c^2+d^2)=0 has no real root, if a d!=b c .

Prove that the equation x^2(a^2+b^2)+2x(a c+b d)+(c^2+d^2)=0 has no real root, if a d!=bc dot

If the equation (a^2+b^2)x^2-2(a c+b d)x+c^2+d^2=0 has equal roots, then (a) a b=c d (b) a d=b c (c) a d=sqrt(b c) (d) a b=sqrt(c d)

Show that the equation 2(a^2+b^2)x^2+2(a+b)x+1=0 has no real roots, when a!=bdot

If the roots of the equation (a^2+b^2)x^2-2(a c+b d)x+(c^2+d^2)=0 are equal, prove that a/b=c/d

Check that if the roots of the equation (a^2+b^2)x^2+2x(ac+bd)+c^2+d^2=0 are real,whether they will be equal

If the roots of the equation x^2+2c x+a b=0 are real unequal, prove that the equation x^2-2(a+b)x+a^2+b^2+2c^2=0 has no real roots.

If a ,b ,c ,d in R , then the equation (x^2+a x-3b)(x^2-c x+b)(x^2-dx+2b)=0 has a. 6 real roots b. at least 2 real roots c. 4 real roots d. none of these

If a, b, c in R and the quadratic equation x^2 + (a + b) x + c = 0 has no real roots then

Show that (x^2+1)^2-x^2=0 has no real roots.

X BOARD PREVIOUS YEAR PAPER ENGLISH-X Boards-All Questions
  1. Which term of the sequence 20 ,19 1/4, 18 1/2, 17 3/4,dot is the first...

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  2. Prove that the tangents drawn at the ends of a chord of a circle make ...

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  3. If (a^2+b^2)x^2+2(ac+bd)x+c^2+d^2=0 has no real root

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  4. In an A.P. first term is 5, last term is 45 and sum = 400 . Find the n...

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  5. On a straight line passing through the foot of a tower, two points C a...

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  6. A bag contains 6 red balls and some blue balls. If the probability ...

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  7. In what ratio does the point (24/11,y) divide the line segment joinin...

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  8. Three semicircles each of diameter 3 cm, a circle of diameter 4·5 cm a...

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  9. Water in a canal, 2·4 m wide and 1·8 m deep, is flowing with a speed o...

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  10. The slant height of a frustum of a cone is 4 cm and the perimeters ...

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  11. Solve for x : 1/(x+1)+3/(5x+1)=5/(x+4), x != -1,-1/5,-4

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  12. Two taps running together can fill a tank in 3(1/13) hours. If one tap...

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  13. If the ratio of the sum of first n terms of two AP's is (7n+1) : (4n +...

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  14. about to only mathematics

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  15. X Yand Xprime Yprimeare two parallel tangents to a circle with centre...

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  16. An aeroplane flying at a height 300 metre above the ground passes vert...

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  17. If two different dice are rolled together, the probability of getting ...

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  18. Q. For what value of k will k+9, 2k-1 and 2k+7 are the consecutive ter...

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  19. A ladder leaning against a wall makes an angle of 60° with the horizon...

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  20. A card is drawn at random from a well shuffled pack of 52 playing card...

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