Math, asked by mbalajim502, 1 month ago

TO 2. (2-a) | 3. If f:R+ → (8,00) defined by f(x)= x² +8, then find f-'(x). ​

Answers

Answered by thiammeikamei
1

Answer:

f:R

1

→(4,∞)

f(x)=x

2

+4

f(x

1

)=f(x

2

)

x

1

2

+4=x

2

2

+4

x

1

=x

2

f(x) is on-one.

f(x)=x

2

+4

y=x

2

+4

x

2

=y−4

x=

y−4

f(x)=x

2

+4

f(x)=(

y−4

)

2

+4

f(x)=y−4+4

f(x)=y

f(x) is onto function.

So,f(x) is bijective, Hence it is invertible

f(x)=x

2

+4

y=x

2

+4

y=x

2

−4

y=

x

2

−4

f

−1

(x)=

x−4

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Answer verified by Top

Answered by chintukumarpurohit23
0

Answer:

fredg46eu3jyeue8292j2hh3n39r98f6f6y3u2uj2n2b2h

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