Jasamara2010 Jasamara2010

06-01-2017
Mathematics

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Find the exact value of tan (arcsin (2/5)). Explain your reasoning.

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L0rdPh03nix L0rdPh03nix

06-01-2017

arcsin (2/5) = arctan(2/√21)
now as tan (arctan (x) ) = x
hence tan (arctan (2/√21)) = 2/√21 = 0.436
ask if you do not understand the first part

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