Solve the Differential Equation Using the Method of Variation of Parameters

question 137

Short Answer

Solve the differential equation using the method of variation of parameters.
$$y ^ { tt } + y = \sec x , \quad \frac { \pi } { 4 } < x < \frac { \pi } { 2 }$$

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Definitions:

Genes

Units of heredity made up of DNA that encode the instructions for the development, functioning, growth, and reproduction of all known organisms and many viruses.

Epigenetic Molecules

Molecules that can alter gene expression without changing the underlying DNA sequence, thus affecting how cells read genes.

Proteins

Large, complex molecules essential to the structure, function, and regulation of the body's cells, tissues, and organs.

Genomes

The complete set of genetic material present in an organism or a cell, including all of its genes.