(65^负1/2-16^2)^负1/2失误了,是 (65^2-16^2)^负1/2

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(65^负1/2-16^2)^负1/2失误了,是(65^2-16^2)^负1/2(65^负1/2-16^2)^负1/2失误了,是(65^2-16^2)^负1/2(65^负1/2-16^2)^负1/2失

(65^负1/2-16^2)^负1/2失误了,是 (65^2-16^2)^负1/2
(65^负1/2-16^2)^负1/2
失误了,是 (65^2-16^2)^负1/2

(65^负1/2-16^2)^负1/2失误了,是 (65^2-16^2)^负1/2
(65^2-16^2)^负1/2
=(4225-256)^负1/2
=3969^负1/2
=√1/3969
=1/63