Question

Find the angle of intersection between the equations f ( x ) = 3 x and g ( x ) = 4 - x 2 in the first quadrant.

Answer 1

Answer choices are

8
11
45

(degrees)

Answer 2

First solve these two equations to get point of intersections of two curves. Find the one which lies in the first quadrant. Then by taking derivatives find slope of each curves at the intersection point. Let us say, these are m1 and m2 then find the angle by calculating arctan(abs(m1-m2)/(1+m1*m2)).

Answer 3

oh okay

Answer 4

what is answer

Answer 5

I go 45

Answer 6

yes 45 is the correct answer.