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-12
-1 _ _ | -2 -1 | |(-2) + (-3) | |_ _|
Solve the outer exponent first. We know that a^-1 = 1/a
1 = ------------- -2 -1 (-2) + (-3) 1 = --------------- 1 1 ---- - ----- 2 (-2) 3 1 = --------------- 1 1 ---- - ----- 4 3 1 = ------------ 3 - 4 --------- 12 1 = --------- -1 ------ 12 12 = 1 × - --- 1 = -12
1/3 -2/3 2n - 2n -------------- = ? -2/3 2n
_____________________ / _____________ / / ____ / / / 2 / 4 / 4 . / 4 / \/ \/ / -------------------- / 3 \/ 2