1186) Given y=2x^3+8x^2+7x+1. Find the peaks and valleys, or find the values of x where y at a local maximum or minimum. Enter the smallest value of x first.1184) Find the length of the curve shown in Fig 1184. k=1.84, a=11185) The line, x=ky^2 shown in Fig 1185, is rotated about the x axis to form shaded area. Find the shaded area (units^2). k=8, a=2. 1196) The line, x=ky^2 shown in Fig 1185, is rotated about the x axis to form volume shown. Find the volume (units^3). k=2, a=3. 1182) Find the volume cm^3 of the solid figure in Fig 1182 that was generated byrotating the shaded region about the y axis. k=1, y1=9, y2=16 cm.

\f