{
"query": {
"display": "$$-2\\sin\\left(x\\right)=1$$",
"symbolab_question": "EQUATION#-2\\sin(x)=1"
},
"solution": {
"level": "PERFORMED",
"subject": "Trigonometry",
"topic": "Trig Equations",
"subTopic": "Trig Equations",
"default": "x=\\frac{7π}{6}+2πn,x=\\frac{11π}{6}+2πn",
"degrees": "x=210^{\\circ }+360^{\\circ }n,x=330^{\\circ }+360^{\\circ }n",
"meta": {
"showVerify": true
}
},
"steps": {
"type": "interim",
"title": "$$-2\\sin\\left(x\\right)=1{\\quad:\\quad}x=\\frac{7π}{6}+2πn,\\:x=\\frac{11π}{6}+2πn$$",
"input": "-2\\sin\\left(x\\right)=1",
"steps": [
{
"type": "interim",
"title": "Divide both sides by $$-2$$",
"input": "-2\\sin\\left(x\\right)=1",
"result": "\\sin\\left(x\\right)=-\\frac{1}{2}",
"steps": [
{
"type": "step",
"primary": "Divide both sides by $$-2$$",
"result": "\\frac{-2\\sin\\left(x\\right)}{-2}=\\frac{1}{-2}"
},
{
"type": "step",
"primary": "Simplify",
"result": "\\sin\\left(x\\right)=-\\frac{1}{2}"
}
],
"meta": {
"interimType": "Divide Both Sides Specific 1Eq",
"gptData": "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"
}
},
{
"type": "interim",
"title": "General solutions for $$\\sin\\left(x\\right)=-\\frac{1}{2}$$",
"result": "x=\\frac{7π}{6}+2πn,\\:x=\\frac{11π}{6}+2πn",
"steps": [
{
"type": "step",
"primary": "$$\\sin\\left(x\\right)$$ periodicity table with $$2πn$$ cycle:<br/>$$\\begin{array}{|c|c|c|c|}\\hline x&\\sin(x)&x&\\sin(x)\\\\\\hline 0&0&π&0\\\\\\hline \\frac{π}{6}&\\frac{1}{2}&\\frac{7π}{6}&-\\frac{1}{2}\\\\\\hline \\frac{π}{4}&\\frac{\\sqrt{2}}{2}&\\frac{5π}{4}&-\\frac{\\sqrt{2}}{2}\\\\\\hline \\frac{π}{3}&\\frac{\\sqrt{3}}{2}&\\frac{4π}{3}&-\\frac{\\sqrt{3}}{2}\\\\\\hline \\frac{π}{2}&1&\\frac{3π}{2}&-1\\\\\\hline \\frac{2π}{3}&\\frac{\\sqrt{3}}{2}&\\frac{5π}{3}&-\\frac{\\sqrt{3}}{2}\\\\\\hline \\frac{3π}{4}&\\frac{\\sqrt{2}}{2}&\\frac{7π}{4}&-\\frac{\\sqrt{2}}{2}\\\\\\hline \\frac{5π}{6}&\\frac{1}{2}&\\frac{11π}{6}&-\\frac{1}{2}\\\\\\hline \\end{array}$$"
},
{
"type": "step",
"result": "x=\\frac{7π}{6}+2πn,\\:x=\\frac{11π}{6}+2πn"
}
],
"meta": {
"interimType": "Trig General Solutions sin 1Eq"
}
}
],
"meta": {
"solvingClass": "Trig Equations",
"practiceLink": "/practice/trigonometry-practice#area=main&subtopic=Trig%20Equations",
"practiceTopic": "Trig Equations"
}
},
"plot_output": {
"meta": {
"plotInfo": {
"variable": "x",
"plotRequest": "-2\\sin(x)-1"
},
"showViewLarger": true
}
},
"meta": {
"showVerify": true
}
}
Solution
Solution
+1
Degrees
Solution steps
Divide both sides by
Divide both sides by
Simplify
General solutions for
periodicity table with cycle:
Graph
Popular Examples
Frequently Asked Questions (FAQ)
What is the general solution for -2sin(x)=1 ?
The general solution for -2sin(x)=1 is x=(7pi)/6+2pin,x=(11pi)/6+2pin