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If x=2, y =1 is a solution of the equati...

If x=2, y =1 is a solution of the equation `2x + by = 5` , find the value of 'b'.

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VGS PUBLICATION-BRILLIANT-REAL NUMBERS-EXERCISE
  1. Rationalise the denominator of 5/(sqrt3+sqrt2)

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  2. (x^2-1)/(x+1)=4 ,then find the value of 'x'.

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  3. If x=2, y =1 is a solution of the equation 2x + by = 5 , find the valu...

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  4. Write the formulae of area and volume of different solid shapes. Find ...

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  5. What is the general form of the points which lie on X-axis ? Write any...

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  6. The opposite angles of a parallelogram are (3x-2)^(@) and (x+48)^(@). ...

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  7. Factorise 8x^3+y^3+z^3-6 xyz, using identity.

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  8. Locate sqrt(10) on the number line.

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  9. State the obscissa and ordinate of the following points and describe t...

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  10. State the obscissa and ordinate of the following points and describe t...

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  11. Simplify : root(3)(625)-4root(3)(343)-5root(4)(81)+6root(5)(32)

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  12. Show that the figure formed by joining the midpoints of sides of a rho...

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  13. In the adjacent figure, AB = BC and AC = CD. Prove that : / BAD : / AD...

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  14. Visualise the representation of 4.bar(35) on the number line through s...

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  15. In a mixture of 28 litres, the ratio of milk and water is 5:2 , set up...

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  16. If p^2+q^2+r^2=0, show that p^6+q^6+r^6=3p^2q^2r^2

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  17. Plot the points A(2, 2), B(9, 2), C(8,5) and D(3,5) in a graph sheet. ...

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  18. sqrt(5+2sqrt6)=

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  19. The coefficients of ‘x^2’ and 'x' in the product of (2x -8), (7- 3x) i...

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  20. Which of the following is not a solution of the equation x+2y=6?

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