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Prove that 3+sqrt5 is an irrational numb...

Prove that `3+sqrt5` is an irrational number.

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CPC CAMBRIDGE PUBLICATION-PRACTICE QUESTION PAPER 13-ANSWER THE FOLLOWING QUESTIONS
  1. Draw a circle of radius 4 cm and construct a pair of tangents such tha...

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  2. Find the co - ordinates of points which divides the line segment joini...

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  3. Prove that 3+sqrt5 is an irrational number.

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  4. Solve 2x^(2)-5x+3 = 0 by using formula.

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  5. The length of a rectangular field is 3 time its breadth . If the area ...

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  6. If sin theta = (12)/(13) find the values of cos theta and tantheta. " ...

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  7. If sqrt3 tan theta = 1 and theta is acute, find the value of sin 3 the...

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  8. Prove that ((1+cos theta)/(1-cos theta))=("cosec"theta + "cot"theta)^(...

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  9. A cubical die numbered from 1 to 6 are rolled twice . Find the probabi...

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  10. The radii of two circular ends of a frustum of a cone shaped dustbin a...

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  11. Prove that "the lengths of tangents drawn from an external points to a...

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  12. In the given figure PQ & RS are two parallel tangents to a circle o an...

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  13. Calculate the median of the following frequency distribution tabel :

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  14. Calculate the mode for the following frequency distribution table

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  15. The seventh term of an arithmetic progression is four times itss secon...

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  16. A line segment is divided into four parts forming an arithmetic progre...

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  17. The vertices of a Delta ABC are A(-3,2) . B (-1,-4) and C(5,2) . If M ...

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  18. The vertices of a Delta ABC are A(-5,-1) B(3.-5) , C-(5.2).Show that t...

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  19. Find the sol.n of the following pair of linear by the graphical method...

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  20. The angle of elevation of the top of a tower from two points at a dist...

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