sin cos tan π e 7 8 9 + Back sin⁻¹ cos⁻¹ tan⁻¹ x^y 10^x 4 5 6 − Ans x³ ³√x x² √x e^x 1 2 3 × M+ ln log 1/x % n! 0 . ( ÷ M− ) ± RND AC =