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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता ११ वी

Select the correct option from the given alternatives: The angle between the line 3x-y-2 = 0 and x-3y+1 = 0 is - Mathematics and Statistics

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प्रश्न

Select the correct option from the given alternatives:

The angle between the line `sqrt(3)x - y - 2` = 0 and `x - sqrt(3)y + 1` = 0 is 

पर्याय

  • 15°

  • 30°

  • 45°

  • 60°

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उत्तर

30°

Explanation:

Here, m1 = `(-sqrt(3))/(-1) = sqrt(3)`,

m2 = `(-1)/(-sqrt(3)) = 1/sqrt(3)`

Now, tan θ = `|("m"_1 - "m"_2)/(1 + "m"_1"m"_2)|`

∴ tan θ =  `|(sqrt(3) - 1/sqrt(3))/(1 + sqrt(3) 1/sqrt(3))|`

= `|(3 - 1)/(2sqrt(3))|`

= `1/sqrt(3)`

∴ θ = 30°

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पाठ 5: Straight Line - Miscellaneous Exercise 5 [पृष्ठ १२४]

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बालभारती Mathematics and Statistics 1 (Arts and Science) [English] Standard 11 Maharashtra State Board
पाठ 5 Straight Line
Miscellaneous Exercise 5 | Q I. (8) | पृष्ठ १२४
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