$10.$

Determine whether each first$-$order differential equation is sep$-$

arable, linear, both, or neither.

$$ choose one

$$ Separable

$$ Linear

$$ Both

$$ Neither

$1.$ dy

dx $+$ exy $=$ x$2$y$2$

$$ choose one

$$ Separable

$$ Linear

$$ Both

$$ Neither

$2.$ y $+$ sin x $=$ x$3$y$$

$1$

$$ choose one

$$ Separable

$$ Linear

$$ Both

$$ Neither

$3.$ y ln x $$ x$2$y $=$ xy$$

$$ choose one

$$ Separable

$$ Linear

$$ Both

$$ Neither

$4.$ dy

dx $+$ cos y $=$ tan x