Trigonometric Ratios And Identities

$\frac{1}{32}(1+\sqrt{2}-\sqrt{3})$

$\frac{1}{16}(1+\sqrt{3}+\sqrt{5})$

$\frac{1}{16}(2+\sqrt{3}-\sqrt{5})$

$\frac{1}{32}(1+2 \sqrt{3}-\sqrt{5})$