Hi there. I need help with a few calculus questions. Please do not round or convert to decimal... keep most accurate answer

10. [0/1 Points] DETAILS PREVIOUS ANSWERS LARHSCALCZ 2.5.058. MY NOTES PRACTICE ANOTHER Two circles of radius 4 are tangent to the graph of y2 = 4X at the point (1, 2). Find equations of these two circles. (Enter your answers as a comma-separated list.) :x Need Help? n. .n.__u A__...__ 13. [-/1 Points] DETAILS LARHSCALC2 2.6.064. Find an equation of the tangent line to the graph of the equation at the given point. arctan(xy) = arcsin(6x + 6y), (0, 0) y =12. [0/1 Points] DETAILS PREVIOUS ANSWERS LARHSCALCZ 2.6.063.MI. Find an equation of the tangent line to the graph of the equation at the given point. x2+xarctany=y1, ( 3,1) 4 X