Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\frac { 27 ^ { n + 1 } } { 3 ^ { n + 2 } }$$

Evaluate

$3\times 9^{n}$

Differentiate w.r.t. n

$6\ln(3)\times 9^{n}$

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