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if tan alpha/2 & tan beta /2n =1:root 3 show that cos square =2 cos alpha -1/2cos alpha

if tan alpha/2 & tan beta /2n =1:root 3 show that cos square =2 cos alpha -1/2cos alpha

Grade:11

1 Answers

Arun
25750 Points
5 years ago
Dear student
 
Please check this question as
 
You have not mentioned the angle in proving part
 
cos square (ANGLE)
 
please specify or you can attach an image too

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