$sin(6cosr+n†)<-0.3

$cos6†<sinr

$cos10†<tan(rsin2r)

$cos10†<tansin2r

$sin(6cosr+5†)<-0.3

$sinx<cosy

$cosr<0

$r<n

$r<2

$x^2%/2^2%%+y^2%<2^2%

$x^2%+y^2%<2^2%