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Show that the relation sec^2 theta = (4x...

Show that the relation `sec^2 theta = (4xy)/(x+y)^2` is possible, only when x=y.

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UNITED BOOK HOUSE-MISCELLANEOUS EXERCISE-EXERCISE
  1. if xsin^3theta+ycos^3theta =sin theta cos theta and x sin theta -y cos...

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  2. (1 + sec 20^2 + cot 70^@) (1 - cosec 20^@ + tan 70^@) equals

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  3. If (sec alpha-tan alpha)(sec beta-tan beta)(sec gamma-tan gamma) = (...

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  4. Find the value of sin^2(pi/16)+ sin^2 ((3pi)/16)+sin^2 ((5pi)/16)+sin^...

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  5. It (cos^4A)/(cos^2B)+(sin^4A)/(sin^2B)=1 then show that (cos^4B)/(cos^...

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  6. Show that the relation sec^2 theta = (4xy)/(x+y)^2 is possible, only w...

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  7. Find the value and tan (pi/16) tan ((3pi)/16) tan((5pi)/16)tan((7pi)/1...

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  8. A spherical ballon of radius r while floating in the sky, makes an ang...

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  9. If 7 cos theta+5 sin theta = 5, then find the value of 5 cos theta-7 s...

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  10. From the bottom of a 'tila' the angle of elevation of its unreachable ...

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  11. An incomplete frequency distribution table is given below: If the...

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  12. The step frequency distribution table of the marks obtained by female ...

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  13. Find the mean of the marks from the frequency table.

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  14. An incomplete frequency distribution table is given below: If the ...

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  15. From the data given below, if the meadian is 32 find the value of f1 a...

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  16. Find the median of the following data.

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  17. The frequency distribution of marks in Mathematics obtained by 50 stud...

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  18. From the following data given below, the mode is 24, find the value of...

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  19. From the data given below draw a more than ogive and find the median.

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  20. From the frequency distibution table given below draw a less than ogiv...

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