{
"query": {
"display": "inverse $$\\ln\\left(x^{3}\\right)$$",
"symbolab_question": "FUNCTION#inverse \\ln(x^{3})"
},
"solution": {
"level": "PERFORMED",
"subject": "Functions & Graphing",
"topic": "Functions",
"subTopic": "inverse",
"default": "e^{\\frac{x}{3}}",
"meta": {
"showVerify": true
}
},
"steps": {
"type": "interim",
"title": "Inverse of $$\\ln\\left(x^{3}\\right):{\\quad}e^{\\frac{x}{3}}$$",
"steps": [
{
"type": "definition",
"title": "Function Inverse definition",
"text": "A function g is the inverse of function f if for $$y=f\\left(x\\right),\\:\\:x=g\\left(y\\right)\\:$$"
},
{
"type": "step",
"result": "y=\\ln\\left(x^{3}\\right)"
},
{
"type": "interim",
"title": "Replace $$x\\:$$with $$y$$",
"input": "y=\\ln\\left(x^{3}\\right)",
"result": "x=\\ln\\left(y^{3}\\right)",
"steps": [
{
"type": "step",
"primary": "Replace $$x\\:$$with $$y$$",
"secondary": [
"Replace $$y\\:$$with $$x$$"
],
"result": "x=\\ln\\left(y^{3}\\right)"
}
],
"meta": {
"interimType": "Interchange Variables 2Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7vpqcDD/7yX5Tbd9fO9JFZTZ65zne7XSU3T2Iz8q9jkL4KqpqHsTkSBgy/axoI6DamTAUhNuvP+oYRx2ZQG6x18Q3tfXX1jSRYh4EFIfu+U5DNOwm/hV0YV0QkO8wKai7EaTcoaJcD/yzWbRAAledhROjRxpO2XYmGPYDdnsqYeQ="
}
},
{
"type": "interim",
"title": "Solve for $$y,\\:x=\\ln\\left(y^{3}\\right)$$",
"input": "x=\\ln\\left(y^{3}\\right)",
"steps": [
{
"type": "interim",
"title": "Apply log rules",
"input": "x=\\ln\\left(y^{3}\\right)",
"result": "y=e^{\\frac{x}{3}}",
"steps": [
{
"type": "step",
"primary": "Apply log rule: $$\\log_{a}\\left(x^b\\right)=b\\cdot\\log_{a}\\left(x\\right)$$",
"secondary": [
"$$\\ln\\left(y^{3}\\right)=3\\ln\\left(y\\right)$$"
],
"result": "x=3\\ln\\left(y\\right)",
"meta": {
"practiceLink": "/practice/logarithms-practice",
"practiceTopic": "Expand FOIL"
}
},
{
"type": "step",
"primary": "Switch sides",
"result": "3\\ln\\left(y\\right)=x"
},
{
"type": "interim",
"title": "Divide both sides by $$3$$",
"input": "3\\ln\\left(y\\right)=x",
"result": "\\ln\\left(y\\right)=\\frac{x}{3}",
"steps": [
{
"type": "step",
"primary": "Divide both sides by $$3$$",
"result": "\\frac{3\\ln\\left(y\\right)}{3}=\\frac{x}{3}"
},
{
"type": "step",
"primary": "Simplify",
"result": "\\ln\\left(y\\right)=\\frac{x}{3}"
}
],
"meta": {
"interimType": "Divide Both Sides Specific 1Eq",
"gptData": "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"
}
},
{
"type": "step",
"primary": "Use the logarithmic definition: If $$\\log_a\\left(b\\right)=c\\:$$then $$b=a^c$$",
"secondary": [
"$$\\ln\\left(y\\right)=\\frac{x}{3}\\quad\\:\\Rightarrow\\:\\quad\\:y=e^{\\frac{x}{3}}$$"
],
"result": "y=e^{\\frac{x}{3}}"
}
],
"meta": {
"interimType": "Apply Log Rules Title 0Eq",
"gptData": "pG0PljGlka7rWtIVHz2xymbOTBTIQkBEGSNjyYYsjjDErT97kX84sZPuiUzCW6s7uEevFnkmsaPDBzpykMhJvKy0+cQg1teFzvbY3+Oda17AOnDcsV4flh1GDqfhbKBXsVBV2q+3sRfeqjWHFfpgTuAxdi2rWaRIC54FE7Ue85kM9jC4hjXgn1UtPAkn2m/J1sD7NfhsPe7eDHrmjY0mE+e2/khsU6lb1o/KZ327eKa9RQa+VFzMcO8uN2y3ZuWk"
}
}
],
"meta": {
"solvingClass": "Equations",
"interimType": "Generic Solve For Title 2Eq"
}
},
{
"type": "step",
"result": "e^{\\frac{x}{3}}"
}
],
"meta": {
"solvingClass": "Function Inverse"
}
},
"plot_output": {
"meta": {
"plotInfo": {
"variable": "x",
"plotRequest": "\\ln(x^{3})"
},
"showViewLarger": true
}
},
"meta": {
"showVerify": true
}
}
Solution
inverse
Solution
Solution steps
Replace with
Solve for
Graph
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Frequently Asked Questions (FAQ)
What is the inverse of ln(x^3) ?
The inverse of ln(x^3) is e^{x/3}