Question
Download Solution PDF(8x3 + 80x2 + 200x) और (4x4 + 16x3 - 20x2) का लघुत्तम समापवर्त्य (LCM) क्या है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया समीकरण:
(8x3 + 80x2 + 200x) and (4x4 + 16x3 - 20x2)
प्रयुक्त अवधारणा:
LCM, न्यूनतम उभयनिष्ठ गुणखंड लेना होता है।
गणना:
पहले हम समीकरणों से उभयनिष्ठ लेंगे,
⇒ 8x3 + 80x2 + 200x
⇒ 8x(x2 + 10x + 25)
⇒ 8x(x2 + 5x + 5x + 25)
⇒ 8x{x(x+ 5) + 5(x + 5)}
⇒ 8x(x + 5)(x + 5)
अब हम दूसरे समीकरण से उभयनिष्ठ लेते हैं,
⇒ 4x4 + 16x3 - 20x2
⇒ 4x2 (x2 + 4x - 5)
⇒ 4x2 (x2 - x + 5x - 5)
⇒ 4x2 {x(x - 1) + 5(x - 1)}
⇒ 4x2 (x - 1)(x+ 5)
अब हमें दोनों समीकरणों से उभयनिष्ठ लेना है,
⇒ पहला समीकरण = 8x(x + 5)(x + 5)
⇒ दूसरा समीकरण = 4x 2 (x - 1)(x+ 5)
⇒ लघुत्तम समापवर्त्य = 8x 2 (x + 5) 2 (x - 1)
⇒ अतः विकल्प 1 सही है।
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