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You're probably right, I just used a random equation XDI can't seem to find any rational roots.
Edit: Grouping, factoring, and synthetic division reveal nothing.
Here's my problem:
If f(x)=sin(x) and f(a)=1/10, find the exact value of the following:
f(a)+f(a+2π)+f(a+4π)
Do not use a calculator.
MeeenYou're probably right, I just used a random equation XD
preferably english thanks cubesI can't seem to find any rational roots.
Edit: Grouping, factoring, and synthetic division reveal nothing.
Here's my problem:
If f(x)=sin(x) and f(a)=1/10, find the exact value of the following:
f(a)+f(a+2π)+f(a+4π)
Do not use a calculator.
x^4+4x^3+6x^2+4x+1. Cheeky binomial expansion.3/10 is the answer for Cubes question.
(x+1)^4
Niiice. Pascal's Triangle would be the most preferred method.x^4+4x^3+6x^2+4x+1. Cheeky binomial expansion.
I used Pascal's Triangle as my method, but the process where you expand an unknown and a constant / two unknowns to the power of whatever is called a binomial (two number) expansion. Or at least that's how it's taught in England. I get the impression that there are some differences in terminology, judging by the fact that RC called what I would call 'roots' 'zeroes'.Niiice. Pascal's Triangle would be the most preferred method.
Here's a fun one:
The function f(x)=1-(π/π/2)sec(π/4)(3x-4π)
Is this function Even or Odd?
Also, to what does this function pay respect to?