What is the value of :
\(
\frac{5\cos^{2}62^\circ + 5\cos^{2}28^\circ - 21}{7\sin^{2}35^\circ + 7\sin^{2}55^\circ + 1}
\)
Find the value of the following expression:
\(
\frac{
1\tfrac{1}{2} + 1\tfrac{3}{7} \div \left(1\tfrac{3}{5} \,\text{ of }\, 1\tfrac{1}{4}\right) \times 2\tfrac{1}{3}
}{
2\tfrac{2}{3} \div \tfrac{4}{9} \times \tfrac{5}{6} + 14
}
\)