The coefficients of ab in 2 a 3 b and 2 a 2 b 4 respectively are-A- 2 and 2B- 2 a 2 and 2 ab 3C- 2 ab 3 and 2 a 2D- 2 a 2 b and 2 ab 3

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Term and Coefficient

The coefficie...

Question

The coefficients of $a b$ in $2 a^{3} b$ and $2 a^{2} b^{4}$ respectively are:

$2$ and $2$

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$2 a^{2}$ and $2 a b^{3}$

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$2 a b^{3}$ and $2 a^{2}$

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$2 a^{2} b$ and $2 a b^{3}$

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Solution

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The coefficient of $a b$ in $2 a^{3} b$ and $2 a^{2} b^{4}$ respectively are:

(a + b), (a^{2} + b^{2})

2 a

(3 x y - 2 a b)^{3} - (3 x y + 2 a b)^{3}

If a, b, c are the roots of x³ - x² - 2004 = 0. Then the value of is equal to

(a - 2 b + 3 c) (a b^{2} - a^{2} b)

3 a^{2} b^{2} - a^{3} b - 2 a b^{3} - 3 a^{2} b c + 30 b^{2} c

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