sin(Pai/12)-根号3*cos(Pai/12)等于多少,怎么算
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sin(Pai/12)-根号3*cos(Pai/12)等于多少,怎么算sin(Pai/12)-根号3*cos(Pai/12)等于多少,怎么算sin(Pai/12)-根号3*cos(Pai/12)等于多
sin(Pai/12)-根号3*cos(Pai/12)等于多少,怎么算
sin(Pai/12)-根号3*cos(Pai/12)等于多少,怎么算
sin(Pai/12)-根号3*cos(Pai/12)等于多少,怎么算
sin (π/12)-√3*cos(π/12) =2*[(1/2)*sin(π/12)-(√3/2)*cos(π/12)] =2*sin(π/12-π/3) =2sin(-π/4) =-2sin(π/4) =-2√2
sin(Pai/12)-根号3*cos(Pai/12)等于多少,怎么算
化简:sin(2pai-a)cos(pai a)/cos(pai-a)sin(3pai-a)
sin(a-3pai)cos(pai-a) / cos(pai/2 - a)cos(pai+a)sin(pai/2 + a)
[tan(pai-a)cos(2pai-a)sin(-a+3pai/2)]/[cos(-a-pai)sin(-pai-a)]=
cos(x-pai/4)=根号2/10,x属于(pai/2,3pai/4)求sinx和sin(2x+pai/3)
已知:cos(x-pai/4)=根号2/10,x属于pai/2,3pai/4,求sin(2x+pai/3)的值
tana=m 则[sin(a+3pai)+cos(pai+a)]/[sin(-a)-cos(pai+a)]
cos (a+4pai)cos ^2(a+pai)sin^2(a+3pai)/ sin(a-4pai)sin(5pai+a)cos^2(-a-pai)
已知cos(pai/6-a)=根号3/3,则sin(a-pai/6)的平方—cos(5pai/6+a)的值为
已知cos(x-pai/6)+sinx=4乘根号3/5,则sin(x+7pai)=
请问如何化简sin^pai/12*cos^pai/12?
[sin^2(a+pai)cos(pai+a)cos(-a-2pai)]/[tan(pai+a)sin^3(pai/2+a)sin(-a-2pai)]=
已知a,b属于(3pai/4,pai),sin(a+b)=-3/5,sin(b-pai/4)=12/13则cos(a+pai/4)=多少
已知(1+tanx)除以(1-tanx)=2倍根号2加3求【cos(pai-x)】的平方+sin(pai+x) cos(pai-x)+【sin(x-pai)】的平方再乘以2的值
化简:[cos(a+pai)*sin^2(a+pai)]/[tan^2(pai+a)*cos^3a]
f(x)=sin(2x+pai/3)+根号3cos(2x+pai/3)减区间周期 若pai/3改为a,0
cos(2pai-a)=根号5/3,且a属于[pai/2,0),则sin(pai-a)=
化简:sin(2pai+a)tan(pai-a)tan(2pai-a)/cos(-pai-a)tan(3pai+a)