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How do you evaluate tan(arccos(-3/4)) without a calculator?
Hello world!
May 27, 2020CRITICAL THINKING ABOUT THE BIBLE
January 5, 2021##-sqrt 7/3##
Let ##a = arc cos (-3/4) in Q2## wherein tangent is also negative.
Then the given expression is
##tan a = sin a/cos a=-sqrt(1-(-3/4)^2)/(-3/4)=-sqrt 7/3##
