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P (1,5)
R (10,2)
Układ równań:
{ 5= a+b*log1
{ 2= a+b*log10
log₁₀1=0
log₁₀10=1
{ 5= a+b*0
{ 2= a+b*1
{ 5= a
{ 2= a+b
2= 5+b
-3= b
Odpowiedź:
a= 5
b= -3