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Find the angle through which a pendulum swings if its length is 75cm and the tip describes an arc of length (i) 10 cm (ii) 15 cm (iii) 19 cm

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FULL MARKS-TRIGONOMETRY-Additional Questions Solved
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  2. An athlete runs 4 times around a circular running track to describe 17...

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  3. Find the angle through which a pendulum swings if its length is 75cm a...

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  4. The angle of a quadrilateral are in A.P. and the greatest angle is 120...

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  5. A railroad curve is to be laid on a circle. What radius should be used...

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  6. A horse is tied to a post by a rope. If the horse moves along a circul...

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  7. A circular wire of radius 3 cm is out bent so as to lie along the circ...

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  8. Let alpha, beta" such that "pi lt alpha-beta lt 3pi." If sin "alpha+si...

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  9. Prove that sin 600^(@)* tan (-690^(@))+sec 840^(@)*cot(-945^(@))=3/2

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  10. Prove that sin (270^(@)-theta) sin (90^(@)-theta)-cos(270^(@)-theta) c...

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  11. Prove that cos 24^(@)+cos 55^(@)+cos 125^(@)+cos 204^(@)+cos 300^(@)=1...

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  12. Prove that cos^(2)""pi/8+cos^(2) ""(3pi)/(8)+cos^(2)""(5pi)/(8)+cos^(2...

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  13. Prove that [1+cot alpha-sec(alpha+pi/2)] [1+cot alpha+sec (alpha+pi/2)...

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  14. Write the general form for tantheta

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  15. Simplify (cos(90^@+theta)sec (-theta)tan(180^(@)-theta))/(sec(360^(@)-...

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  16. Find x from the equation cosec (90^(@)+A)+x cos A cot (90^(@)+A)=sin(9...

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  17. Prove that sin (A+B) sin (A-B)=cos^(2) B-cos^(2) A

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  18. Prove that (i) sin A+sin (120^(@)+A)+sin(240^(@)+A)=0 (ii) cos A+c...

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  19. If tan A=5/6, tan B=1/11," show that A+B=45"^(@).

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  20. If A+B=45^(@)," show that "(1+tan A) (1+tan B)=2 and hence deduce the ...

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