Hey I need some help with the following problems:
1. f(x)= 2x^3 + 3x^2 + 7x + 4, a=4
2. f(x)= x^3 + 3sinx + 2cosx, a=2
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If , then . Find b from the given a.
Now use this rule: If , . Hence .
For example, for (1): (the quadratic has no real roots). So
Similarly for (2). . By inspection, is a solution. Hence .
Last edited by JaneBennet; Jan 23rd 2008 at 07:06 PM.
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