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वक्र x2 = 4y एवं रेखा x = 4y – 2 से घिरे क्षेत्र का क्षेत्रफल ज्ञात कीजिए।

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दिया गया वक्र x= 4y ….(1) 

तथा दी गई रेखा x = 4y – 2 …(2) 

(1) और (2) को हल करने पर, 

(4y – 2)2 = 4y 

या 16y2 – 16y + 4 – 4y = 0 

या 16y2 – 20y + 4 = 0 

या 4y– 5y + 1 = 0 

या (y – 1)(4y – 1) = 0

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