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Find the value of (sin 25^@)/(sec65^@)+(...

Find the value of `(sin 25^@)/(sec65^@)+(cos 25^@)/(cosec 65^@)`.

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UNITED BOOK HOUSE-HOOGHLY COLLIGIATE SCHOOL-EXERCISE
  1. If x prop y and y prop z, then prove that : (x^2+y^2+z^2) prop (xy+yz+...

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  2. If (x^2-yz)/a=(y^2-zx)/b=(z^2-xy)/c , show that (a+b+c)(x+y+z)=(ax+by...

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  3. If b+c-a/x+y-x = c+a-b/c+x-y = a+bc/x+y-z, then prove that a/x = b/y =...

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  4. State and Prove Pythagoras theorem.

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  5. Answer any One queation : Prove that, if a perpendicular is draw on t...

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  6. If in ABC,A is right angle and BP and CQ are two medians, then prove t...

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  7. ABC is a triangle whose AB = AC. E is any point an extended BC, circum...

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  8. Geometrically find the value of sqrt(29).

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  9. Draw a right angled triangle length of hypotenuse and one of another s...

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  10. In a circle, if an arc of 220 cm length subtends and angle of measure ...

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  11. If sin theta+cos theta = 7/5 then sin theta cost theta = 12/25, find t...

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  12. Find the value of (sin 25^@)/(sec65^@)+(cos 25^@)/(cosec 65^@).

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  13. From a point on the roof a house 11 metres height, it is observed that...

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  14. If the angle of depression of two consecutive km stones on a road fro...

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  15. The length and breadth of a rectangular field of the village are 20m a...

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  16. The external radius of a hollow sphere made of lead sheet of 1 cm thic...

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  17. The length of two sides adjacent to right angle of a right angled tria...

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  18. Calculate the mean of the following data by step devaition method.

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  19. Find themode of the following frequency distribution.

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  20. Make a cumulative frequency distribution (greater than type) table and...

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