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Modern Periodic Law

14. If Zeffec...

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14. If Zeffective of sodium is x then Z effective of carbon is a)x +.90 b)x+1.50 c)x+1.95 d)x+.40

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x + 1

a x^{4} + b x^{3} + c x^{2} + d x + e = 0

a, b, c, d

be in arithmetic progression with common difference

λ .

∣ ∣ ∣ ∣ \begin{matrix} x + a - c & x + b & x + a x - 1 & x + c & x + b x - b + d & x + d & x + c \end{matrix} ∣ ∣ ∣ ∣ = 2,

λ^{2}

2, 5, 7, - 4

are the roots of

a x^{4} + b x^{3} + c x^{2} + d x + e = 0

then the roots of

a x^{4} - b x^{3} + c x^{2} - d x + e = 0

x^{2} + x + 1

a x^{3} + b x^{2} + c x + d

, then real root of

a x^{3} + b x^{2} + c x + d = 0

x^{3} + 1

a x^{2} + b x^{3} + c x^{2} + d x + e,

ϵ R a n d a \neq 0,

then the real root of

a x^{4} + b x^{3} + c x^{2} + d x + e = 0

other than -1 is

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