2 cos(A+B)cos(A-B)=1 show that tan^2 a = (1-tan^2 b)/ (1 + 3 tan^2 b)
2 cos(A+B)cos(A-B)=1 show that tan^2 a = (1-tan^2 b)/ (1 + 3 tan^2 b)
ashish , 8 Years ago
Grade 12th pass
Trigonometry> 2 cos(A+B)cos(A-B)=1 show that tan^2 a = ...
1 Answers
Saurabh Koranglekar
Last Activity: 7 Years ago
cos^2 (2A) β sin^2(2B) = 1
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