Prove that each of the following identities is true 1 cos 0

Last updated: 3/22/2024

Prove that each of the following identities is true 1 cos 0 tan 0 sin 2 sec 0 cot 0 csc 0 3 csc 0 tan 0 sec 0 4 tan 0 cot 0 1 tan A 5 sin A sec A cot A 6 cos A CSC A 7 sec 0 cot 0 sin 0 1 8 tan csc 0 cos 0 1 9 cos x csc x tan x cot x sin x 10 sin x sec x csc x tan x 1 11 csc x cot x 1 cot x csc x sec x 12 tan x cos x cot x sin x 1 13 cos x 1 tan x 1 15 1 sin x 1 sin x cos x 14 sin x cot2x 1 1 16 1 cos x 1 cos x sin x 17 cost sint sin t cott 1 18 sint cost sin t cos t sec t csct