Question

7. The average of 3^30,3^60 and 3^90​

Answer 1

Step-by-step explanation:

Average=

$\frac{ {3}^{30} + {3}^{60} + {3}^{90} }{3} \\ = \frac{ ({3}^{30})(1 + {3}^{2} + {3}^{3} }{3} \\ = {3}^{30} \times ( \frac{1 + 9 + 27}{3} ) \\ = {3}^{30} \times \frac{37}{3} \\ = 37 \times {3}^{29}$

Thank you