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If A+B+C=pi , prove that cotA+cotB+cotC-...

If `A+B+C=pi` , prove that `cotA+cotB+cotC-cos e cAdotcos e cBdotcos e cC=cotAdotcotBdotcotCdot`

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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
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  2. If cos e ctheta-cottheta=q , then the value of cos e ctheta is

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  3. If A+B+C=pi , prove that cotA+cotB+cotC-cos e cAdotcos e cBdotcos e cC...

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  4. Let D be the middle point of the side B C of a triangle A B Cdot If th...

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  5. Solve 2tantheta-cottheta=-1

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  6. If sec^4theta+sec^2theta=10+tan^4theta+tan^2theta, then sin^2theta=

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  7. If cos(A+B+C)=cosAcosBcosC , then find the value of (8sin(B+C)sin(C+A)...

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  8. In the given figure, what is the radius of the inscribed circle? 3/2 ...

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  9. Solve tan3theta=-1

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  10. If sinA=sin^2Ba n d2cos^2A=3cos^2B then the triangle A B C is right...

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  11. In triangle A B C , if cotA *cotC=1/2a n dcot B* cotC=1/(18), then t...

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  12. If in a triangle A B C ,(1+cosA)/a+(1+cosB)/b+(1+cosC)/c =(k^2(1+cosA...

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  13. Solve tantheta+tan2theta+sqrt(3)tanthetatan2theta=sqrt(3)

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  14. The product of the sines of the angles of a triangle is p and the prod...

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  15. If (sinx)/a=(cosx)/b=(tanx)/c=k , then b c+1/(c k)+(a k)/(1+b k) is eq...

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  16. In A B C ,a=5,b=12 ,c=90^0a n dD is a point on A B so that /B C D=45^...

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  17. Solve tan5theta=cot2theta

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  19. In a right-angled isosceles triangle, the ratio of the circumradius an...

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