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Juliana500
@Juliana500
August 2022
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Для функций:
б) f(x)=2x²+3x-4
г) f(x)=1/x²
найдите значение f(-2), f(1/3), f(1)
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Для функций:
б) f(x)=2x²+3x-4
г) f(x)=1/x²
найдите значение f(-2), f(1/3), f(1)
б) f(-2)=2(-2)²+3(-2)-4=8-6-4= -2
f(1/3)=2·(1/3)²+3·(1/3)-4=2/9+1-4=2/9-27/9=-25/9
f(1)=2·(1)²+3·(1)-4=2+3-4=1
г) f(x)=1/x²
f(-2)=1/(-2)²=1/4
f(1/3)=1/(1/3)²=9
f(1)=1/(1)²=1
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Juliana500
Спасибо большое!!!!!
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Answers & Comments
Verified answer
Для функций:б) f(x)=2x²+3x-4
г) f(x)=1/x²
найдите значение f(-2), f(1/3), f(1)
б) f(-2)=2(-2)²+3(-2)-4=8-6-4= -2
f(1/3)=2·(1/3)²+3·(1/3)-4=2/9+1-4=2/9-27/9=-25/9
f(1)=2·(1)²+3·(1)-4=2+3-4=1
г) f(x)=1/x²
f(-2)=1/(-2)²=1/4
f(1/3)=1/(1/3)²=9
f(1)=1/(1)²=1