= = cscӨ cotӨ= tan2Ө +1 sec2Ө = = cotӨ 1+ cot2Ө csc2Ө Summary of Cofunctions Sine and Cosine Tangent and Cotangent Secant and Cosecant sinӨ=cos(90-Ө) tanӨ=cot(90-Ө) secӨ=csc(90-Ө) cosӨ=sin(90-Ө) cotӨ=tan(90-Ө) cscӨ=sec(90-Ө)
cscӨ = cotӨ = cotӨ= tan2Ө +1 = sec2Ө 1+ cot2Ө = csc2Ө Summary of Cofunctions Sine and Cosine sinӨ=cos(90-Ө) cosӨ=sin(90-Ө) Tangent and Cotangent tanӨ=cot(90-Ө) cotӨ=tan(90-Ө) Secant and Cosecant secӨ=csc(90-Ө) cscӨ=sec(90-Ө)