What will happen if a same inverse trigonometric function is inside a inverse trigonometric function sin⁻¹(sin⁻¹(x)) like that ?
Answer (1)
13th Jan, 2022
sin⁻¹(sin⁻¹(x)) is equal to x and this true for all the inverse trigonometric function
sin⁻¹(sin⁻¹(x)) = x
cos⁻¹(cos⁻¹(x))= x
tan⁻¹(tan⁻¹(x))=x
cot⁻¹(cot⁻¹(x))=x
cosec⁻¹(cosec⁻¹(x))=x
sec⁻¹(sec⁻¹(x))= x
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