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Show that cos^2theta+cos^2(alpha+theta)-...

Show that `cos^2theta+cos^2(alpha+theta)-2cosalphacostheta"cos"(alpha+theta)` is independent of `thetadot`

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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
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  2. Let 2sin^2x+3sinx-2>0a n dx^2-x-2<0(x is measured in radians). Then x ...

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  3. Show that cos^2theta+cos^2(alpha+theta)-2cosalphacostheta"cos"(alpha+t...

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  4. Prove that the distance between the circumcenter and the incenter of ...

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  5. The number of all the possible triplets (a1,a2,a3) such that a1+a2cos(...

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  6. Range of f(theta)=cos^2theta(cos^2theta+1)+2sin^2theta is

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

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

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

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

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

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

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

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

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

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

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

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

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

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