Command Partial Fractions Expression 
- Cosine of a product of 4 factors. The 1st factor of the product is equal to a quotient: dividend of the quotient is x. Divisor of the quotient is c. The 2nd factor of the product is o. The 3rd factor of the product is equal to a power. The base is s. The exponent is two. The 4th factor of the product is equal to a sum of 2 terms. The 1st term of the sum is x. The 2nd term of the sum is equal to sine of x.
- cosine of x fraction line c times o multiplied by s to the power two multiplied by left parenthesis x plus sine of x right parenthesis;
Result
- Cosine of a rational expression: the top of the rational expression is a product of 4 factors. The 1st factor of the product is o. The 2nd factor of the product is equal to a power. The base is s. The exponent is two. The 3rd factor of the product is x. The 4th factor of the product is a sum that consists of 2 terms. The 1st term of the sum is equal to sine of x. The 2nd term of the sum is equal to x. The bottom of the rational expression is c.
- cosine of o times s to the power of two multiplied by x times opening parenthesis sine of x plus x closing parenthesis divided by c;
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