Monday
December 9, 2013

# Posts by Tony

Total # Posts: 760

Polynomials
The polynomial P(x)=ax^3+bx^2+cx+d leaves a remainder of 10x+11 when it is divided by x^2−1. It leaves a remainder of −6 when it is divided by x^2+x+1. What is the value of bc−ad

Complex numbers
If f(x) is a polynomial with real coefficients such that f(4+3i)=31+16i, then f(4−3i)=a+bi. What is the value of a+b

Maths
thank you very much

Maths
A and B are real numbers such that the two quadratic equations 19x^2+3x+2=0 and Ax^2+Bx+7=0 have a common root. What is the value of A+B

Trigonometry
What is the maximum integer value of x, where x<200, that satisfies the following inequalities: sin(90+180x/100)<0 and tan(180−180x/100)<0 ?

Algebra
you mean 527. Thanks a lot

Algebra
f(x)is a monic cubic polynomial with real coefficients. f(x) has 7+4i as a root and f(0)=−2145 . What is the coefficient of x in f(x) ?

Maths
The roots of the polynomial f(x)=7x^2 +38x+c=0 are reciprocals of each other. What is the value of c ?

MATHS
558