write the coefficient of x^2 in each of the following
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a) Here, π / 6 is a constant so coefficient of x² is 1 as there is no multiple with x².
b) There is no term representing x² so coefficient is 0.
c) ( x - 1 ) ( 3x - 4 )
= 3x² - 4x - 3x + 4
= 3x² - 7x + 4
Coefficient of x² = 3.
d) ( 2x - 5 ) ( 2x² - 3x + 1 )
= 4x³ - 6x² + 2x - 10x² + 15x - 5
= 4x³ - 16x² + 17x - 5
Coefficient of x² = -16
Hope it helps u .... :D
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