Evaluate: Sec^-1 (sec (-Pi/6) ) I really don't have much of a clue! Thankyou
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Originally Posted by katedew987 Evaluate: Sec^-1 (sec (-Pi/6) ) I really don't have much of a clue! Thankyou For any invertible function $\displaystyle f\,,\,\,f^{-1}(f(x))=x\,,\,\forall x$ in the definition domain of $\displaystyle f$ Tonio
Originally Posted by katedew987 Evaluate: Sec^-1 (sec (-Pi/6) ) I really don't have much of a clue! Thankyou Well if we are only interested in the smallest positive solution that would be $\displaystyle \pi/6$ or the smallest absolute value negative solution $\displaystyle -\pi/6$ Now can you identify all of the solutions? CB
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