Match the device with its task. i. Turbine
ii. Fan
iii. Compressor
iv. Pump
a. Increases the pressure of a gas slightly and is mainly used to move a gas
b. Increases pressure of gases and vapors
c. Increases pressure for liquids
d. Produces shaft work

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

a is the best answer your welcome