Find all values of aa that make |a|=0|a|=0. give your answer as a comma-separated list.

Given is a modulus function |f(x)| that gives absolute value of the signed number written inside it.

For example |x|=2 means x = 2 or -2.

If the absolute value modulus function is zero ( i.e. |f(x)| = 0), then the expression inside the modulus function must be zero as well. It means f(x) = 0.

Now we have |a| = 0. So the possible solution of |a| = 0 must be {0}.

Hence, the answer is {0}.

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step-by-step explanation

2r= 2300

r =1150