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Verify the identity. cot(x-pi/2)= -tanx please show work.
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Verify the identity.
cot(x-pi/2)= -tanx

please show work.

User Louis Gerbarg
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1 Answer

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tan (x + pi/2) = -cot x
tan (pi/6 + pi/2) = -cot (pi/6)
tan (2pi/3) = -cot (pi/6)
-sqrt (3) = -[sqrt 3] <<< so it is true for x = pi/6
User Daydreamer
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