Find the inverse of the matrix if it exists. 
Definitions:
Total Magnification
The combined magnifying power of an optical system, calculated by multiplying the objective lens magnification by the ocular lens magnification.
Ocular Lens
A transparent structure in the eye that, along with the cornea, helps to refract light to be focused on the retina.
Objective Lens
The lens in a microscope closest to the specimen that helps to magnify the image of the object being observed.
Objective Lens
A critical component in microscopes that gathers light from the specimen and focuses it to create a real image.
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