1)8▽10
=(8+1)×(10-1)
=9×9
=81
(2)10▽8
=(10+1)×(8-1)
=11×7
=77
规定运算“▽”为:a▽b=(a+1)×(b-1),请计算: (1)8▽10; (2)10▽8.
规定运算“▽”为:a▽b=(a+1)×(b-1),请计算:
(1)8▽10;
(2)10▽8.
(1)8▽10;
(2)10▽8.
数学人气:792 ℃时间:2020-02-05 10:21:37
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