Casio fx-120 User Manual

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EXAMPLEEJEMPLOWhen tanh4xis0.88,Cuandotanh4xes 0.88,x~tanh~'O.88~0.343941925sinh-'2xcosh-'l.5~1.389388947OPERATIONOPERACION2~l§Jo;;jEl1

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Ex.)Findthelengthrandangle0 inradianwhenthepointP isshownas x = 1and)'=.j3 intherectanyularco-ordinates.Ex.}Ej.lEncontrarellar90r y el angulo 0 e

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INTRODUCTIONINTRODUCCIONDear customer,Congratulationsonyourpurchaseofthiselectroniccalculator.Tohelpensureitslongevity,donottouchtheinsideofthecalcula

7/SPEGIFIGATIONSABILITIES:Normalfunctions4basicfunctions.constantsfor+I-/x/:!J':Y/x':Y.chainandmixedoperations,pareo·thesiscalculations.auto

READ-DUT:Digitrontubepanel,suppressi-ngunnecessaryO's(zeros).PDWER CONSUMPTION:0.8WPOWERSOURCE:AC:100,117,220or240V(.lOVJ,50/60Hz.withanapplicabl

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l/NOMENCLATUREPower switch:Movetheleftsideswitchforwardtostartacalcu-lation.r-----:::QJRead-out:Showseachentryandresult,whetherintheregu-lar10dipitdis

a Equal key:Obtainsanswer.1';;1Exponent/Pientrykey:Enterstheexponentoftenupto±99.Toenter2.34x10s6•press@L~I@J0~)l~Jinsequence.Enters thecircularc

+,LSign change key:Changesthesignofthenumberdi'.>playedfromplustominusandvice versa.INVInverse key:Forfunctionsprintedinorangeonthekeyboardinv

dela,.~TangentfArctangentkey:Obtainsthetangentoftheangleondisplay.Obtainstheanglewhenpressedafterthel§key.iiiClear key:Clearsentryfor correction.9iJAl

..1t is necessarytoreplacethepowerpackwhenits lifedecreasestohalftheoriginal...Itisdangeroustothrowthepowerpackintoafkeortoattempttodisassembleit... N

•Thel@ keyafterentering 9or10digit mantissa(8, 9or10digits for a negative mantissa} displaysonlythesignificant 8 digits (7 digits for a nega-tive}.Sub

itNo es necesario presionarlatecla~~antesdelateclaS.Otra forma deoperares:10m~~7EJ[c;;;3D6~:9;~·ita3·2Calculos constantes* Aseguresedepresionar la tec