Question

if x+y+z=0 find the value of
$1 \div { a}^{y}+{a}^{ - z}+1 + 1 \div {a}^{z}+{a}^{ - x}+1 + 1 \div {a}^{x}+{a}^{ - y}+ 1$
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Answer 1

Answer:

0

Step-by-step explanation:

I don't know how to do this question

I really don't have any idea about it