Evaluate each of

(i)

_{By prime factorization of terms, We have,}

_{= =} =

=

(ii)

_{By prime factorization of terms, We have,}

=

=

(iii)

_{By prime factorization of terms, We have,}

=

(iv)

_{By prime factorization of terms, We have,}

= =

=

(v)

_{By prime factorization of terms, We have,}

=