π*0.75^2*1.3/(4/3)*π*0.025^3
π*0.75^2*1.3/(4/3)*π*0.025^3
cosπ/3+tanπ/4+3tan²π/6+sinπ/2+cosπ+sin3π/2等于?.
cosπ/3-tanπ/4+cosπ-sin3π/2 化简计算
计算cos5分之π+cos5分之2π+cos5分之3π+cos5分之4π
化简 cot(a+4π)cos(a+π)[sin(a+3π)]^2/tan(π+a)[cos(-π-a)]^2
已知cos(θ+π/4)=3/5,π/2
3π/4
π3^2h+π4^2h=πr^2h
数学角度计算cos(π/3)-sin^2(π/4)+1/3*tan^2 (π/3)*sin(3π/2)+cosπ=?注:
已知sin(a-3π)=2cos(a-4π),求(sin(π-a)+5cos((3π/2)-a))/(2sin(3π/2
已知3π/2
若3π/2