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3.5 Derivatives of trig functions. Find the derivative of y = sin x using the definition of derivative. MEMORIZE. Find the derivative of tan x. Rewrite tangent as sine/cosine and use the quotient rule. Find the derivative of cot x. Rewrite cotangent as cosine/sine and use the quotient rule.
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Find the derivative of y = sin x using the definition of derivative.
Find the derivative of tan x Rewrite tangent as sine/cosine and use the quotient rule.
Find the derivative of cot x Rewrite cotangent as cosine/sine and use the quotient rule.
Find the derivative of sec x Rewrite secant as 1/cosine and use the quotient rule.
Find the derivative of csc x Rewrite cosecant as 1/sine and use the quotient rule.