What is the domain of 2-3a ?

The domain of 2-3a is -infinity <a<infinity

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domain of 2-3a

domain

2 - 3 a

- \infty < a < \infty

Interval Notation

(- \infty, \infty)

Solution steps

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < a < \infty

y = x 2 - x^{2}

x^{2} + 8

f (x, y) = x^{2} + y^{2}

f (x, y) = 4 - x^{2} - y^{2}

f (x) = x^{2} + y^{2}