Question

answer this question fast

Answer 1

{5×1/4+4×4/3-1}/{1/4+3/4}
{5/4+16/3-1}/1
(15+64-12)/12
57/12
i hope this will help you

Answer 2

use the following info
$\sin(60 ) = \frac{ \sqrt{3} }{2} = \cos(30) \\ \sin(30) = \cos(60) = .5 \\ { \sin(x) }^{2 } + { { \cos(x) }^{2} } = 1$