. (a) If u is a complex-valued function of a real variable, its indefinite integral y usxd dx is an antiderivative of u. Evaluate y es11i dx dx (b) By considering the real and imaginary parts of the integral in part (a), evaluate the real integrals y ex cos x dx and y ex sin x dx (c) Compare with the method used in Example 7.1.4.

Preferred Mineral Orientation *How does preferred mineral orientation develop *Pressure solutionoccurs in wet rocks at low T. *Minerals dissolve at compressed faces *Minerals grow where compression is less *Grains become shorter, parallel to compression. *Plastic deformation occurs at higher T. *Existing grains flatten by deforming internally *Shear Rotation and Flattening *Shear flattens grains in a manner similar to compression *Shear rotates grains into alignment Kinds of Metamorphic Foliation *Slaty Cleavage *Low Grade: alignment of clay minerals *Schistosity: *Mediumhigh grade: alignment of large micas *Compositional bonding(Gneissic bonding) *High grade: light bands of felsic minerals and dark bands o