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Notas

Even and odd funtions

abdelrahman rabie Mathematics Inglês 1 página

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even and odd functions

اي قصة الدالتين دول

even function: has symmetry with respect to the y-axis

يعني هي دالة ليها تماثل مع محور ص

ex) F(x)= 2x^2

طيب لو عاوز اعرف الدالة دي من خلال معادلة مش من خلال الرسم اعمل اي

اعوض عن قيمة س ب -س واشوف المعادلة هتطلع اي ولو كان

f(-x)=f(x), the function is even

ex] f(x)=-3x^6 +3

replace x with -x so we have f(-x)=-3(-x)^6 +3= -3x^6 +3

since f(x)= -3x^6 +3 and f(-x)= -3x^6 +3

so the function is even

odd functions: has symmetry with the origin

ليها تماثل حول محور الأصل

ex) f(x)= x^3

طيب لو عاوز اعرف الدالة انها كده من غير رسم اعمل اي

replace x with -x and compare the two functions

if f(-x)=-f(x)

the function is odd.

ex] f(x)= 3x^7

f(-x)= 3(-x)^7 f(-x)=-3x^7

since f(x)=3x^7 and f(-x)=-3x^7

f(-x)=-f(x) thus the function is odd

if f(x) isn't = f(-x) and isn't =-f(x)

then the function is neither even nor odd.

Even and odd funtions

Even and odd funtions

Informações

Descrição
Mathematics Notas sobre Even and odd funtions, criado por abdelrahman rabie em 04-04-2021.
Criado por
abdelrahman rabie · abr 2021
Atualizado
4 abr 2021
Visualizações
1
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