if thita=60°, then 1-tan^2thita/2tan thita
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Answer:
thita=60°.
1-tan²thita/2tan thita=?.
1-tan²60°/2tan 60°.
tan 60°=√3.
1-(√3)²/2(√3).
1-3/2√3.
-2/2√3.
-1/√3.
1-tan²thita/2tan thita=-1/√3.
I think this is your answer.
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