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The co-function identities relate "co-pairs" of trig functions at x and π/2 - x. For example, sin(π/2 - x) = cos(x), cos(π/2 - x) = sin(x), tan(π/2 - x) = cot(x), and cot(π/2 - x) = tan(x).
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Summary of trigonometric identities
Use cofunction identities and trig identities to find the indicated trig functions
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Using Cofunction Identities, Trigonometry
Trigonometry - Cofunction identities
Use cofunction identities and trig identities to find the indicated trig functions
Summary of trigonometric identities
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