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Coefficients

Write the coe...

Question

Write the coefficient of:

$(i) a b i n 7 a b x, (i i) 7 a i n 7 a b x; (i i i) 5 x^{2} i n 5 x^{2} - 5 x; (i v) 8 i n a^{2} - 8 a x + a; (v) 4 x y i n x^{2} - 4 x y + y^{2} .$

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Solution

$(i) T h e c o e f f i c i e n t o f a b i n 7 a b x = 7 x A n s . (i i) T h e c o e f f i c i e n t o f 7 a i n 7 a b x = b x A n s . (i i i) T h e c o e f f i c i e n t o f 5 x^{2} i n 5 x^{2} - 5 x = 1 A n s . (i v) T h e c o e f f i c i e n t o f 8 i n a^{2} - 8 a x + a = - a x A n s . (v) T h e c o e f f i c i e n t o f 4 x y i n x^{2} - 4 x y + y^{2} = - 1 A n s .$

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