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The greatest angle of a cyclic quadrilat...

The greatest angle of a cyclic quadrilateral is three times the least. The other two angles are in the ratio 4 : 5. Find all the angles in radians.

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MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
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  4. A wire 121 cm long is bent so as to lie along the arc of a circle of 9...

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  5. Prove that: (tan A)/(1-cotA)+ (cotA)/(1-tan A)= 1/ (sinA cosA)+1.

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  10. Given, sin x =-3/7 and x belongs to the third quadrant, obtain the va...

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  11. If 7 sin A = 24 cos A and 0ltAlt pi/2, find 14 tan A - 25 cos A-7 sec...

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  12. If sectheta= x+1/(4x) , then prove that sectheta+tantheta=2x or 1/(2x)...

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  13. If tan theta =p/q, show that : (p sin theta-q cos theta)/(p sin thet...

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  14. If sin x + sin^2 x = 1, show that : cos^4 x+ cos^2 x=1.

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  15. If sin x + cos x =sqrt2 cos x, show that : sqrt2 sin x =cos x- sin x.

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