Question

$\frac{2}{3} {z}^{2} - \frac{1}{3} {z}^{2} - 1 \: by \: \frac{1}{3 } {z}$
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Answer 1

Step-by-step explanation:

Question ;

2/3 z² - 1/3 z² - 1 by 1/3

= 2-1 / 3 z² - 1/1/3

= 1/3 z² - 3/1

= 1/3 z² - 3 ( ans )...

Hope ! it's helpful...