Express the lengths a b c and d in the figure in terms of th

Express the lengths a, b, c, and d in the figure in terms of the trigonometric ratios of theta.

tan theta= opposite/adjacent

tan theta= a/d

a=d tan theta

tan theta=b/1

b=tan theta

cos theta=adjacent/hypotenuse

cos theta=1/c

c=1/cos theta=sec theta

tan theta=a/d

d=a/tan theta=a cot theta