tan30°×tan135°×tan150°× tan45°=?
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Answer:
-1×-3√3×1/√3×1=3 is the solution
swarnalatasahoo:
thanks, but it's wrong.
then wat is the answer
=(1/√3)×(-1)×(-1/√3)×1=1
tan 150°=-√3/3
no,tan=-1√3
if u want 1time check in Google
tan150°=tan(90°+60°)=-cot60°=-1√3
check it
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