Question

In Exercises 17–20, u is an acute angle and sin u and cos u are

given. Use identities to find tan u, csc u, sec u, and cot u. Where
necessary, rationalize denominators
20.

Answer 1

Tan u = sin u/cos u, csc u = 1/sin u, sec u = 1/cos u, and cot u = cos u/sin u. The denominators of the fractions can be rationalized by multiplying the numerator and denominator by the conjugate of the denominator.

Explanation: