I'm having trouble with these problems not sure where to start. Any help is greatly appreciated.

1.) Find all values of https://webwork.math.lsu.edu/webwork...dd0b8b8e91.png where the tangent lines to https://webwork.math.lsu.edu/webwork...7b715f83d1.png and https://webwork.math.lsu.edu/webwork...2d8726df41.png are parallel.

2.) Find an equation for the line tangent to the graph ofhttps://webwork.math.lsu.edu/webwork...a7a84ef741.png at the point https://webwork.math.lsu.edu/webwork...b83c87e881.png for https://webwork.math.lsu.edu/webwork...910c0a5021.png.

3.) Calculate https://webwork.math.lsu.edu/webwork...ae0385ef21.png for https://webwork.math.lsu.edu/webwork...e017108431.png, where https://webwork.math.lsu.edu/webwork...7cc87c1701.png (with a,b,c,d the constants)

Thanks again!