Tan alpha = p/q . Berapakah sin alpha , cos alpha , cosec alpha, sec alpha, cotan alpha?

tan a = p/q

tan = y/x

y = p
x = q
r = √(p²+q²)

sin a
= y/r
= p / √(p²+q²)

cos a
= x/r
= q / (√p²+q²)

csc a
= 1/sin a
= (√p²+q²)/p

sec a
= 1/cos a
= (√p²+q²)/q

cot a
= 1/tan a
= q/p