3.(-48)÷ 48= class 7th Chapter integer​

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

Which expression gives the area of the triangle shown below

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g