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⒈(1-π)º-√3·sin60°+(-2)³·(¼)²⒉√18-2/√2-√8/2+(√5-1)º⒊√8*sin45°+2-(√2-1)º⒋√12-4sin60°+(-1)³⒌1/2-tan60°+(√5-1)º+√3⒍2/(√3-1)-sin60º+(-2√5)º-√1

题目详情
⒈(1-π)º-√3·sin60°+(-2)³·(¼)²
⒉√18-2/√2-√8/2+(√5-1)º
⒊√8*sin45°+2-(√2-1)º
⒋√12-4sin60°+(-1)³
⒌1/2-tan60°+(√5-1)º+√3
⒍2/(√3-1)-sin60º+(-2√5)º-√12/4
⒎tan60º-2/(√3-1)+2+(x²+1)º
⒏3+(√3-π)º-2tan45°
⒐3+16/(-2)³+(2007-π/3)º-√3tan60°
▼优质解答
答案和解析
⒈(1-π)º-√3·sin60°+(-2)³·(¼)²=1-3/2-8*1/8=-3/2
⒉√18-2/√2-√8/2+(√5-1)º=3√2-√2-√2+1=√2+1
⒊√8*sin45°+2-(√2-1)º=2+2-1=3
⒋√12-4sin60°+(-1)³=2√3-2√3=0
⒌1/2-tan60°+(√5-1)º+√3=1/2-√3+1=3/2-√3
⒍2/(√3-1)-sin60º+(-2√5)º-√12/4=√3+1-√3/2+1=2+√3/2
⒎tan60º-2/(√3-1)+2+(x²+1)º=√3-√3-1+2+1=2
⒏3+(√3-π)º-2tan45°3+1-2=2
⒐3+16/(-2)³+(2007-π/3)º-√3tan60°=3-2+1-3=-1 (多给点分吧)