May 2021 3 422 Report
MATEMÁTICA - (Cesgranrio-RJ) Se 0< a < pi/2, pi/2 < b < pi e sen a= sen b = 3/5, então a+b vale:?

a) pi

b) 3pi/2

c) 5pi/4

d) 4pi/3

e) 6pi/5

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