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If 0 lt theta lt pi, then minimum value ...

If `0 lt theta lt pi,` then minimum value of`3sintheta+cosec^3 theta` is

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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
  1. Range of f(theta)=cos^2theta(cos^2theta+1)+2sin^2theta is

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  2. If sinalphacosbeta=-1/2 then find the range of values of cosalphasinbe...

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  3. If 0 lt theta lt pi, then minimum value of3sintheta+cosec^3 theta is

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  4. In A B C , let L ,M ,N be the feet of the altitudes. The prove that s...

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  5. The value of theta lying between theta=0 and theta=pi/2 and satisfying...

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  6. If sin(A-B)=1/(sqrt(10 )), cos(A+B)=2/(sqrt(29)), find the value of ta...

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  7. Prove that he distance between the circum-centre and the ortho-centre ...

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  8. One value of theta which satisfies the equation sin^(4)theta-2sin^(2)t...

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  9. If A=sin^(8) theta + cos^(14) theta, then for all values of theta,

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  10. If 3 tan theta tan phi=1, then prove that 2 cos (theta+phi)=cos (theta...

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  11. Minimum value of y=256sin^2x+324cos e c^2x,AAx in R is

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  12. If (cos^2x+1/(cos^2x)) (1+tan^2 2y)(3+sin3z)=4, then x is an integral ...

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  13. A circle is inscribed in a triangle A B C touching the side A B at D s...

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  14. In a triangle ABC, if sinAsin(B-C)=sinCsin(A-B), then prove that cotA...

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  15. The minimum value of the expression sin alpha + sin beta+ sin gamma, ...

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  16. In A B C ,cotA/2+cotB/2+cotC/2 is equal to Delta/(r^2) (b) ((a+b+...

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  17. The value of theta in (0,2pi) for which 2sin^2theta-5sintheta+2>0 is (...

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  18. In A B C , if cotA+cotB+cotC=0 then find the value of cosAcos BcosC

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  19. Prove that tan 1^@ tan 2^@ tan 3^@........ tan 88^@tan89^@=1

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  20. In triangle ABC, the line joining the circumcenter and incenter is p...

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