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Mathematics 8 Online
OpenStudy (anonymous):

find the exact value for cot(11pi/12)

OpenStudy (anonymous):

use the inverse of tan(a+b) equation

OpenStudy (anonymous):

@Michele_Laino

OpenStudy (anonymous):

@welshfella @nincompoop

OpenStudy (anonymous):

@AaronAndyson

OpenStudy (welshfella):

i think you can ise the half angle formula tan (x/2 = sin x -------- 1 + cos x i'll just check if i got that right

OpenStudy (welshfella):

put x = 11pi/6

OpenStudy (welshfella):

|dw:1437930509023:dw|

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