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Rhys
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On a 167 day streak.
Longest streak: 167 days
Rhys
Studying A Level Mathematics and Elementary Number Theory
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karma
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@rhys-r Rhys commented one way to approach this is by showing its actually a many to one mapping, by considering points at e.g #x = 1 # and #x = -1 # to what gives you the same #f(x) # #=> f(1) = f(-1) # hence the function is many to one, meaning there are multiple values for #x# that gives the same #f(x) # hence not one to one on The function #f# is defined by #f(x)=1-x^2#, #x sub RR#. Show that #f# is NOT one-to-one. Can someone help me please?
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@rhys-r Rhys updated the answer to Find the value? #(Tan85^@ - Tan25^@)/(1+Tan85^@Tan25^@)# .
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@rhys-r Rhys commented Do you mean by regression formulae? on How can u calculate the line of best fit by using a table?
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@rhys-r Rhys commented Hence meaning he will have 756 at the end, and earn 56 in interest total on How much interest will he earn after 8 years?
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@rhys-r Rhys wrote an answer to Find the value? #(Tan85^@ - Tan25^@)/(1+Tan85^@Tan25^@)# .
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@rhys-r Rhys wrote an answer to What is the limit as x approaches infinity of #e^(-x^2)#? .
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@rhys-r Rhys commented #L approx 17888429/2500000 # on What is the arc length of #f(x)=xsqrt(x^2-1) # on #x in [3,4] #?
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@rhys-r Rhys commented is that #1/2 x = 1 #? on Solve (1/2)X=1?
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@rhys-r Rhys wrote an answer to It is question about series topic geometric series? .
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