(1+cos theta)(1- costheta)=3/4
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1
(1 + cos¢ ) ( 1 - cos¢ ) = 3/4
1² - cos²¢ = 3/4
sin²¢ = 3/4
sin¢ = √3/2
sin¢ = sin60°
.¢ = 60° Answer
1² - cos²¢ = 3/4
sin²¢ = 3/4
sin¢ = √3/2
sin¢ = sin60°
.¢ = 60° Answer
Answered by
0
1-cos2Ф=3/4
cos2Ф=3/4-1
cos2Ф=-3/4
cosФ=-√3/2
Ф=150
cos2Ф=3/4-1
cos2Ф=-3/4
cosФ=-√3/2
Ф=150
raktimachaurasiya:
hbyu
opps sry
mins cos theta=mins root 1/2 theta=60
hahaha... hehehe
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