Can we write 1-sin theta=cos theta

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Solution

Generally we can't write this equation,expessially thetta is not mension
in special case thetta is the type
1)0,0+360,0+360+360,......
2)90,90+360,90+360+360,....
Actual equation is
Sin^2 (x) +cos^2 (x) =1

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The expression $E = \frac{1 + cos θ + sin θ}{1 + cos θ - sin θ}$ can be simplified to

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