Question

From the figure given below, find the value of:
i)sin A ii)cos A iii)cot A iv)sec C v)cosec C vi) tan C

Answer 1

$\sin A=\frac{BC}{AC}=\frac{4}{5}$

$\cos A=\frac{AB}{AC}=\frac{3}{5}$

$\cos A=\frac{3/5}{4/5}=\frac{3}{4}$

$\sec C=\frac{AC}{BC}=\frac{5}{4}$

$\csc C=\frac{AC}{AB}=\frac{5}{3}$

$\tan C=\frac{AB}{BC}=\frac{3}{4}$