बिंदू (-5, 5) आणि (7, -3) असलेल्या रेषाखंडाला 3 ∶ 1 या गुणोत्तरामध्ये विभाजित करणाऱ्या बिंदूचे समन्वय कोणते आहेत?

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RRB ALP CBT I 29 Aug 2018 Shift 1 Official Paper
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  1. (-2, 3)
  2. (4, -1)
  3. \(\left(\frac{5}{2},0\right)\)
  4. (1, 1)

Answer (Detailed Solution Below)

Option 2 : (4, -1)
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दिलेले:

बिंदू (–5, 5) आणि (7, –3) 3 : 1 च्या प्रमाणात अंतर्गत जोडणारी रेषा

वापरलेली संकल्पना:

(x, y) = [{m1 × x2 + m2 × x1}/m1 + m2], [{m1 × y2 + m2 × y1}/m1 + 2]

गणना:

समजा P(x, y) हा बिंदू आहे जो रेषाखंडाला अंतर्गत भाग करतो.

येथे, m1 = 3, m2 = 1

(x1, y1) = (-5, 5) आणि (x2, y2) = (7, -3)

वरील सूत्रात वरील मूल्ये ठेवल्यास आपल्याला मिळते

⇒ x = [{3(7) + 1(-5)}/4], y = [{3(-3) + 1(5)}/4]

⇒ x = 16/4, y = -4/4

x = 4, y = -1

∴ (4, -1) हा बिंदू आहे जो रेषाखंडाला विभाजित करतो

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