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In the polynomial p(x) = 6x^6 − 5x^5 + 4x^3 − 2x^2 + x − 7, what is the sum of the coefficients of the odd-power terms?

Answer and explanation

Correct answer: 0

The odd-power terms are −5x^5, 4x^3, and x, whose coefficients are −5, 4, and 1. Thus, their sum is −5 + 4 + 1 = 0. The constant term −7 and the coefficients of even-power terms are excluded. Exam tip: The sum of coefficients of odd-power terms can also be found using [p(1) − p(−1)]/2.

Related tags

PolynomialsCoefficientsOdd PowersPolynomial ExpressionsPolynomials In One VariableMathematicsClass 10 Mcq

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