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For x in (0, pi) the equation sin x+2 si...

For `x in (0, pi)` the equation `sin x+2 sin 2x-sin 3x=3` has

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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
  1. The positive integer value of n >3 satisfying the equation 1/(sin(pi/n...

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  2. IF the lengths of the side of triangle are 3,5 and 7, then the largest...

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  3. For x in (0, pi) the equation sin x+2 sin 2x-sin 3x=3 has

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  4. Match list-I with list-II and select the correct answer using the code...

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  5. In a triangle ABC, angleB = pi/3 and angleC= pi/4. Let D divide side B...

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  6. If costheta1 =2costheta2, then tan((theta1-theta2)/2)tan((theta1+theta...

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  7. If (cos e c^2theta-4)x^2+(cottheta+sqrt(3))x+cos^2(3pi)/2=0 holds true...

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  8. Which of the following is the value of sin 27^0-cos 27^0? (a) -(s...

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  9. In triangle A B C ,a , b , c are the lengths of its sides and A , B ,C...

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  10. In a A B C , if tanA:tanB :tanC=3:4:5, then the value of sinA sinB ...

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  11. Let tanx-tan^2x >0 and |2sinx|<1 . Then the intersection of which of t...

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  12. One angle of an isosceles triangle is 120^0 and the radius of its inci...

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  13. If cot^(2)x=cot(x-y)*cot(x-z), then cot2x is equal to (x!= pm pi/4)

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  14. If x+y=pi/4a n dtanx+tany=1,t h e n(n in Z)

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  15. In A B C ,(cot (A/2)+cot(B/2))(asin^2(B/2)+bsin^2(A/2))= (a) cotC (...

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  16. If (sinx)/(siny)=1/2,(cosx)/(cosy)=3/2 , where x , y , in (0,pi/2), ...

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  17. If 0lt=xlt=2pi, then 2^(cosec^2(x)) sqrt(1/2y^2-y+1)lt=sqrt(2) (a...

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  18. In A B C , internal angle bisector of /A meets side B C in D . DE|A D...

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  19. If y=(1+t a n A)(1-t a n B), where A-B=pi/4, then (y+1)^(y+1) is equal...

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  20. If cos(x+pi/3)+cos x=a has real solutions, then (a) number of inte...

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