Use a graphing utility to determine which of the six trigono
Use a graphing utility to determine which of the six trigonometric functions is equal to the expression. Verify your answer algeba 1/sin x (1/cos x - cos x) sin x cos x tan x CSC X sec x cot x
Solution
( 1/ sin x) * ( ( 1/ cos x) - cosx)
( 1/ sin x) *[( 1 - cos2 x) / cos x ]
( 1 / sin x) * ( sin 2 x / cos x) [ sin2 x + cos2 x = 1]
= sin x / cos x
= tan x
