If tan 0=2 2/5 where 0 is acute, find the values of

Question

a)2 sin 0
b)cos (9O-0)
i could not understand this question.

Answer 1

like the other one ... 5-12-13

tan = 12/5

sin = 12/13

cos = 5/13

cos(90 - Θ) = sin (Θ)

fyi
... holding down the 'alt' key while typing '233' will generate the 'Θ'