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Two posts are x meters apart and the hei...

Two posts are x meters apart and the height of one is double that of the other. If from the mid-point of the line joining their feet, an observer finds the angle of elevations of their tops to be complementary, then the height (in meters) of the shorter post is
दो खंभे एक दूसरे से xमी दूर है तथा एक खंभा दूसरे का दो गुणा था। अगर उनके पायों को जोड़ने वाली रेखा के मध्य बिन्दू पर खड़ा एक प्रेक्षक उनके उन्नयन कोण पूरक पाता तब छोटे खंभे की ऊँचाई बताइये।

A

`x/(2 sqrt2)`

B

`x/sqrt2`

C

`x/(3 sqrt2)`

D

`x/4`

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CHAMPION PUBLICATION-2012 TIER-II PAPER(22)-EXERCISE
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  2. If x= sqrt((sqrt5+1)/(sqrt5-1)), then x^(2)-x -1 is equal to

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  3. Two posts are x meters apart and the height of one is double that of t...

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  4. If theta is a positive acute angle and tan 2 theta .tan 3 theta = 1, t...

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  5. If sin 17^@ = x/y,then the value of sec 17^@ - sin 73^@ is

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  6. In a right -angled triangle XYZ right angled at Y . If XY=2sqrt(6)a...

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  7. If 0^@ lt theta lt 90^@, then the value of sin theta + cos theta is

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  8. An aeroplane when flying at a height of 5000 m from the ground ...

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  9. The angles of a triangle are in Arithmetic Progression. The ratio of t...

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  10. Suppose DeltaABC be a right-angled triangle where angleA= 90^@ and AD ...

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  11. Two circles touch each other externally at P. AB is a direct common ta...

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  12. The length of the common chord of two intersecting circles is 24 cm. I...

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  13. In DeltaABC, D and E are points on AB and AC respectively such that DE...

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  14. The area of the square inscribed in a circle of radius 8 cm is

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  15. X and Y are centres of circles of a radii 9 cm and 2 cm respectively, ...

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  16. I is the incentre of a triangle ABC. If /ABC = 65^@ and /ACB = 55^@, t...

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  17. If the radii of two circles be 6 cm and 3 cm and the length of the tra...

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  18. The ratio between the number of sides of two regular Polygons is 1:2 a...

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  19. Find minimum value of sin^(2)theta+cosec^(2)theta+cos^(2)theta+sec^(...

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  20. If 2sin((pi)/(2))=x^(2)+(1)/(x^(2)), then the value of (x-(1)/(x)) i...

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