Urgent need answer for this one.

4th option

Step-by-step explanation:

6/sin(65) = 5/sin(x)

or, 6×sin(x) = 5×sin(65)

or, sin(x) = 5×sin(65)/6

or, x = arcsin(5×sin(65)/6)

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.