Derivatives of Trigonometric Functions

Here are the derivatives of trigonometric functions.

• If y = sin x, y’ = cos x
• If y = cos x, y’ = -sin x
• If y = tan x, y’ = sec² x
• If y = sec x, y’ = sec x tan x
• If y = cosec x, y’ = -cosec x cot x
• If y = cot x, y’ = -cosec² x