Sec2.3: Problem 15 (1 point) Book Problem 25 a: - Find equations of the tangent line and normal line to the curve 3; 2 12 cos a: at the point (arr/3, 6). The derivative y' (at) = The slope of the tangent line is 1711 = The equation of the tangent line is y 2 The slope of the normal line is m2 = The equation of the normal line is y