cosh(0)

{ "query": { "display": "$$\\cosh\\left(0\\right)$$", "symbolab_question": "TRIG_EVALUATE#\\cosh(0)" }, "solution": { "level": "PERFORMED", "subject": "Trigonometry", "topic": "Evaluate Functions", "subTopic": "Simplified", "default": "1", "meta": { "showVerify": true } }, "steps": { "type": "interim", "title": "$$\\cosh\\left(0\\right)=1$$", "input": "\\cosh\\left(0\\right)", "steps": [ { "type": "step", "primary": "Use the Hyperbolic identity: $$\\cosh\\left(x\\right)=\\frac{e^{x}+e^{-x}}{2}$$", "result": "=\\frac{e^{0}+e^{-0}}{2}" }, { "type": "step", "primary": "Simplify", "result": "=1" } ], "meta": { "solvingClass": "Trig Evaluate", "practiceLink": "/practice/trigonometry-practice#area=main&subtopic=Evaluate%20Functions", "practiceTopic": "Evaluate Functions" } }, "meta": { "showVerify": true } }