Question

(medal given) For each function find the natural domain
a.f(x)=6x^2-x-2
b.f(x)=square root x-3
c.f(x)=1/square root x-3
d.f(x)=1/x +1

Answer 1

wanna know how to solve it or he answers?

Answer 2

solve it

Answer 3

A) \[-\infty,\infty\]

Answer 4

Those will be in parentheses like (-infinty, infinty)

Answer 5

@hartnn

Answer 6

B. (3, ∞)

Answer 7

C.) same as B
D) (-∞, 1) (1,∞)

Answer 8

Ignore B It would be [3, ∞) for both B and C, the type of parentheses used is important

Answer 9

\[for B ,\it is [3,\infty) .for C \it is \left( 3, \infty\right) \]

Answer 10

\[for D ,\left( -\infty,-1 \right)\cup \left( -1,\infty \right) \]
or all real numbers except -1

Answer 11

@surjithayer is right about those

Answer 12

1.denominator should not be zero.
2.terms under radical sign should be >=0