20-04-2021
Mathematics

contestada

if f(x) = 2x +1 and g(x) = 5x-6 then what are f(-1) and g(3)

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madisonhammond87 madisonhammond87

20-04-2021

Answer: -1

Step-by-step explanation: ANSWER : -1

f(x)=3x−1=y

⇒x=3y+1

∴f−1(y)=3y+1

⇒f−1(x)=3x+1

g(x)=5x+6=z

⇒x=5z−6

g−1(z)=5z−6

⇒g−1(x)=5x−6

g−1(f−1(x))=g−1(3x+1)

=53x+1−6

=15x−17

∴g−1(f−1(2))=

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