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Show that, sqrt((1-"cos"A)/(1+"cos"A))...

Show that,
`sqrt((1-"cos"A)/(1+"cos"A))=("sin"A)/(1+"cos"A)`

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ICSE-MATHEMATICS-2013-SECTION- B
  1. Salman buys 50 shares of face value 100rs available at 132rs (i) Wha...

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  2. Salman buys 50 shares of face value 100rs available at 132rs (i) Wha...

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  3. Show that, sqrt((1-"cos"A)/(1+"cos"A))=("sin"A)/(1+"cos"A)

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  4. In the given circle with centre O, angleABC=100^(@),angleACD=40^(@) an...

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  5. Given below are the entries in a Saving Bank A/c pass book : Cal...

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  6. In DeltaABC, A (3, 5), B (7, 8) and C(1, -10). Find the equation of th...

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  8. In the igure given, from the top of a building AB = 60 m high, the ang...

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  9. In the figure given, from the top of a building AB = 60 m high, the an...

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  10. Find x and y, if : [{:(,x,3x),(,y,4y):}] [{:(,2),(,1):}]=[{:(,5),(,12)...

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  11. A solid sphere of radius 15 cm is melted and recast into solid right c...

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  12. Find the value of 'p'. If the following quadratic equations have equal...

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  13. In the figure alongside, OAB is a quadrant of a circle. The radius OA ...

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  14. A box contains some black balls and 30 white balls. If the probability...

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  15. Find the mean of the following distribution by step deviation method :

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  16. Using a rular and compass only : (i) Construct a triangle ABC with t...

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  18. The marks obtained by 120 styudents in a test are given below : D...

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  19. The marks obtained by 120 styudents in a test are given below : D...

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  20. In the figure given below , the line segment AB meets X-axis at A and ...

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