Zadanie 2f
Write F(x) = (x4 + ux2 + 1)(x4 + vx2 + 1), where u,v are integers with u<v. Determine u,v by forming and solving an appropriate system of equations.
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Znaleziono 1343 zadania
Write F(x) = (x4 + ux2 + 1)(x4 + vx2 + 1), where u,v are integers with u<v. Determine u,v by forming and solving an appropriate system of equations.
Hence find all roots of F(x) = 0 exactly, stating multiplicities.
Prove that every monic palindromic polynomial of odd degree has −1 as a root.
Prove that (5n + 3)2 − (5n − 3)2 is divisible by 30 for every positive integer n.
Find k.
Find E(X).
Triangle ABC has AB=6 cm, BC=10 cm and AC=8 cm. Its angle at B is 2θ. Find the exact value of cos θ in the form , with positive integers p,q.
Find angle BAE in degrees.
Find (i) CE; (ii) BA.
An arithmetic sequence satisfies u8 = 21 and S19 = 285. Find the positive integer k for which uk = 0.