prove that tan-1(√(1-cosx)/(1 cos x ) =x/2

Aman Mankar's image
Aman Mankar
Oct. 5, 2017, 3:11 p.m.

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Davneet Singh's image
Davneet Singh
Jan. 11, 2017, 11:34 a.m.

Hi Aman,

Please check Ex 2.2, 7 of Chapter 2 Inverse Trigonometry here http://teachoo.com/3054/677/Ex-2.2--7---Chapter-2-Class-12-Inverse-Trignometry---tan-1/category/Ex-2.2/

 

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