Formulae based
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Last updated at April 16, 2024 by Teachoo
Some formulae for Inverse Trigonometry are
sin –1 (–x) = – sin -1 x
cos –1 (–x) = π – cos -1 x
tan –1 (–x) = – tan -1 x
cosec –1 (–x) = – cosec -1 x
sec –1 (–x) = π – sec -1 x
cot –1 (–x) = π – cot -1 x
3 tan^(−1)𝑥 "formula" 3 tan^(−1)𝑥= {■8(tan^(−1) ((3𝑥−𝑥^3)/(1−3𝑥^2 ))&𝑖𝑓 − 1/√3<𝑥< 1/√3 @〖π+𝑡𝑎𝑛〗^(−1) ((3𝑥−𝑥^3)/(1−3𝑥^2 ))&𝑖𝑓 𝑥> 1/√3@〖−π+𝑡𝑎𝑛〗^(−1) ((3𝑥−𝑥^3)/(1−3𝑥^2 ))&𝑖𝑓 𝑥<− 1/√3)┤
