![Can someone let me know how I can use the reverse tangent feature on this calculator? I press the tan key but it does not show me how to input a reverse Can someone let me know how I can use the reverse tangent feature on this calculator? I press the tan key but it does not show me how to input a reverse](https://preview.redd.it/qudxru7sfbm71.jpg?auto=webp&s=8226e1d7404a27047e429bca3c8a2edca1b1ca32)
Can someone let me know how I can use the reverse tangent feature on this calculator? I press the tan key but it does not show me how to input a reverse
![SOLVED:Evaluate without calculator: arc sin(- Yi) = b) arc tan V3 c) cos-1 (-1) = d) sin-1 ( - 3 Find the exact value of the following expressions using right triangles: cos(arccot %) SOLVED:Evaluate without calculator: arc sin(- Yi) = b) arc tan V3 c) cos-1 (-1) = d) sin-1 ( - 3 Find the exact value of the following expressions using right triangles: cos(arccot %)](https://cdn.numerade.com/ask_images/3eaa9a0830694326b793d9e4bf50a8f6.jpg)
SOLVED:Evaluate without calculator: arc sin(- Yi) = b) arc tan V3 c) cos-1 (-1) = d) sin-1 ( - 3 Find the exact value of the following expressions using right triangles: cos(arccot %)
![I have the EL-531XT and i can't find the integral feature. But i can find the derivative one tho. Is there anyway to calculate integral with this calculator? Thanks! : r/calculators I have the EL-531XT and i can't find the integral feature. But i can find the derivative one tho. Is there anyway to calculate integral with this calculator? Thanks! : r/calculators](https://preview.redd.it/p6okcce1lpi81.jpg?width=640&crop=smart&auto=webp&s=a356b6b4d5823396c16b518e505cd939389b5697)