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Chapter 8 व्यंजकों का गुणनफल एवं सर्वसमिकाएँ Ex दक्षता 8 Solutions

Question - 21 : - यदि x –  = 3/2  तो x2 +  का मन ज्ञात कीजिए

Answer - 21 : -



Question - 22 : -
दिखाइये।

(b) (4mn + 3n)2 – (4mn – 3n)2 = 48 mn2
(c) (a-b) (a + b) + (b-c) (b + c) + (e-a) (c+a) = 0

Answer - 22 : - (a)


(b)

(c)

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