Mathematics, 18.07.2019 06:30 Jasten
Question (c)! how do i know that t^5-10t^3+5t=0? !
Answers: 1
, we have 
and 
. So
, the denominator is a non-zero number, so only the numerator can contribute to this reducing to 0.
with a variable 
, then the above means 
, then 
and 
. So by a similar argument as above, we deduce that 
is also a root to the quadratic equation above.
for all 
, as is the case for 
and 
, so we choose the positive root.
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Question (c)! how do i know that t^5-10t^3+5t=0? !...
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