(1)2又1⼀5*(1⼀3-1⼀2)*3⼀11⼀1又1⼀3的值 (2)cos45*(-1⼀2)^-2-(2倍的根号2-根号3)^0+根号32的

绝对值+1/根号2 的值
2025-01-06 02:01:14
推荐回答(2个)
回答1:

(1)2又1/5*(1/3-1/2)*3/11/1又1/3
=11/5*(-1/6)*3/11*3/4
=-11/30*3/11*3/4
=-1/10*3/4
=-3/40

(2)cos45*(-1/2)^-2-(2倍的根号2-根号3)^0+根号32的绝对值+1/根号2
=1/2√2*4-1+4√2+1/2√2
=2√2-1+4√2+1/2√2
=13/2√2-1

回答2:

2又1/5*(1/3-1/2)*3/11/1又1/3
=11/5*(1/3-1/2)*3/11/(4/3)
=3/5*(1/3-1/2)/(4/3)
=3/5*3/4*(2/6-3/6)
=9/20*(-1/6)
=-3/40

cos45°*(-1/2)^(-2)-(2√2-√3)^0+√32
=√2/2*(-2)^2-1+4√2
=√2/2*4-1+4√2
=2√2-1+4√2
=6√2-1