解不等式组: x - 1 ⩽ 4 3 x - 2 ( 2 - x ) > 6 .
计算:
计算:an﹣5(an+1b3m﹣2)2+(an﹣1bm﹣2)3(﹣b3m+2)
计算:(﹣)0= .
解不等式(组) (1)5x>3(x-2)+2 (2)
若,求3x+y的值.