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sin cos tan sin⁻¹ cos⁻¹ tan⁻¹ sinh cosh tanh ln log eˣ √ ∛ abs floor ceil round π e x² x³ xʸ x! ( ) % 1/x DEL AC 7 8 9 ÷ × − 4 5 6 + . Ans 1 2 3 0 00 =