Question

( y=cos operatorname{ccs} x+cot x(text { grences }) )
Cferom o) ( =y operatorname{cosec} x(cot x+cos e x) )
( =y^{2} operatorname{cosec} x )
in ( sin x frac{d^{2} y}{d x^{2}}=y^{2} mid ) hemce

# I cosext cotx Show that a sine day yz

Solution