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Give the exact value of the expression without using a calculator:
sin(2cos(inv) 1/5)
 one year ago
 one year ago
Give the exact value of the expression without using a calculator: sin(2cos(inv) 1/5)
 one year ago
 one year ago

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telijahmedBest ResponseYou've already chosen the best response.0
let cos(inv) 1/5 = A
 one year ago

telijahmedBest ResponseYou've already chosen the best response.0
\[\sin (2A)= 2sinAcosA\]
 one year ago

telijahmedBest ResponseYou've already chosen the best response.0
what is A you substitute
 one year ago

telijahmedBest ResponseYou've already chosen the best response.0
\[2\sin (\cos ^{1}1/5) \cos (\cos ^{1}1/5)\]
 one year ago

telijahmedBest ResponseYou've already chosen the best response.0
\[2\sin (\cos ^{1}1/5) * 1/5\]
 one year ago

telijahmedBest ResponseYou've already chosen the best response.0
can you go on from here
 one year ago
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