Question

plz solve fast with explain I will give brain mark fastt please ​

Answer 1

$HEYA \: \:$

lim ( Cos² x )/( Sin x - 1 )

x->π/2

lim ( 1² - Sin² x )/(Sin x - 1 )

x->π/2

lim ( 1 - Sin x ) × (1 + Sin x )/(Sin x - 1)

x->π/2

lim - ( 1 + Sin x )

x->π/2

lim - ( 1 + Sin π/2 )

x->π/2

= -2