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If costheta1 =2costheta2, then tan((thet...

If `costheta_1 =2costheta_2,` then `tan((theta_1-theta_2)/2)tan((theta_1+theta_2)/2)` is equal to

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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
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  3. If costheta1 =2costheta2, then tan((theta1-theta2)/2)tan((theta1+theta...

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

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

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

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

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