Question 1068830
The symbols are not clear.
If it's
11tan = 25sin^2*tan
11tan - 25sin^2*tan = 0
tan*(11 - 25sin^2) = 0
tan = 0
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theta = 0, 180 degs
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(11 - 25sin^2) = 0
sin^2 = 11/25
sin(theta) = ħsqrt(11)/5
etc