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17) determine f(x0) when 18) rationalize the denominators 19) prove 20) determine 21) considering that (...) demonstrate 22) transform, using the formulas of compound square roots
Just a cute one (i'm not really in the mood for long calculations)
Considering p and 8*(p^2)+1 are prime numbers, show that 8*(p^2)-1 is also a prime number.
Taken from a book named "Problems for high-school".
Btw, I'm not really so much into maths, I have more interesting problems (that i can solve) in physics and informatics. I checked the answers for this one. Tell me when you give up :P I'll give u the answer.
b) 11 + 4*Sqrt(7)
took 1 min total calculated without paper
17) determine f(x0) when 18) rationalize the denominators 19) prove 20) determine 21) considering that (...) demonstrate 22) transform, using the formulas of compound square roots
want me to try find something more difficult :P ?
Considering p and 8*(p^2)+1 are prime numbers, show that 8*(p^2)-1 is also a prime number.
Taken from a
Btw, I'm not really so much into maths, I have more interesting problems (that i can solve) in physics and informatics. I checked the answers for this one. Tell me when you give up :P I'll give u the answer.
But I also study medicine, which I concentrate on atm
btw, I'll think about the problem now although I hate exercises where u have to proof something :)
we haven't used calculator in maths any time in uni