If this is the multiplication of the two fractions, then multiply 15 by cos x and write it in the numerator as 15cos(x).
Then do 1 * 33 which is 33. Write 33 in the denominator.
[tex] \dfrac{\cos x}{1} \dfrac{15}{33} = [/tex]
[tex] = \dfrac{15 \cos x}{33} [/tex]
