To find the limit of the given function as x approaches -3, we substitute -3 into the function:
lim x→-3 (3 - x) / (3 - √(x + 6))
Plugging in -3:
= (3 - (-3)) / (3 - √(-3 + 6))
Simplifying:
= 6 / (3 - √3)
To proceed further, we can multiply the numerator and denominator by the conjugate of the denominator:
= (6 / (3 - √3)) * ((3 + √3) / (3 + √3))
= (6 * (3 + √3)) / ((3 - √3) * (3 + √3))
Expanding the denominator:
= (6 * (3 + √3)) / (9 - 3)
= (6 * (3 + √3)) / 6
Canceling out the 6's:
= 3 + √3
Therefore, the limit of the given function as x approaches -3 is 3 + √3.
