Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

Can anyone evaluate #tan ((5pi)/6) - sin ((7pi)/4) + cot((4pi)/3)# ?

1 Answer

Dec 17, 2016

#tan ((5pi)/6) - sin ((7pi)/4) + cot((4pi)/3)#

#=tan (pi-pi/6) - sin (2pi-pi/4) + cot(pi+pi/3)#

#=-tan (pi/6) - (-sin (pi/4)) - cot(pi/3)#

#=-1/sqrt3+1/sqrt2 -1/sqrt3#

#=-2/sqrt3+1/sqrt2#

#=1/(sqrt6)(sqrt3-2sqrt2)#

Related questions

See all questions in Logarithm-- Inverse of an Exponential Function

Impact of this question

1708 views around the world

You can reuse this answer
Creative Commons License