encuentre el vAlor exacto de cada expresion si 0=60 (no utilize calculadora) sen(0) cos(0) sen(0/2) cos(20) (cos(0)/2) 2cos(0) 2sen(09
encuentre el vAlor exacto de cada expresion si 0=60 (no utilize calculadora) sen(0) cos(0) sen(0/2) cos(20) (cos(0)/2) 2cos(0) 2sen(09
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la expresion seria igual a :
sen60xcos60xsen30xcos120xcos30x2xcos60x2xsen480
(raizde3/2)x(1/2)x(1/2)x(-1/2)x(raizde3/2)x2x(1/2)x(1/2)x2
resolviendo:
queda: -3/32