已知f(x)=2sin(2x+π/6)+3,题如下已知f(x)=2sin(2x+π/6)+3,在△ABC中,a,b,c分别是角A,B,C的对边,若f(A)=4,b=1,△ABC的面积为√3/2,求a由f(A)=4得sin(2A+π/6)=0.5,又∵A为三角形内角,∴π/6<2A+π/6<13π/6∴2A+π/6=5π
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/24 20:08:39
xWn<1BX-*P[(P$nyw7Ixŋ.3%Q3̙'B>g4K E9g_^{=Ko^{u/~|߾b/?/},Tf5{wWƳbbcL2'jJ7~=AX1#+^~]˳ŘCfdWӛIv1*f>f.WpʳpEJ%%1s76#ͧVG?K_OW( ^(O[OO=c5<&u7h05IqhǏ\ՓlUgQ~fX
*&,|QTLZ"RαQ Fx >g:[ ~_4/(9"3.]ّFRHd7KIBz}[dVL鞶e'VaįM9'pzB;^Z8+
EgȩKqEJWv|*s?U!X-3J;I8#YzqJ].g1_zHJxoѓ7|Jate.gx,39>C>NSm2G\qmpf
Z+I9GTnS}so\Fb8//8vmN3(:`u;d\L(xl24
iƣmN*yp[{n
A" ~WͦSW9;TE Z J,h6Oi0W2ex]r*a3g``k*w~E< p 0
b
k*-p%iD|kKm"H!2,pՈQ
W9_0Ͱqׁh4D07O[26$)ma۲;GB_YMV2BQ ӎD]K>W?u%J9f
MgUB)QτfoT0!QsD!')l_+dcҺ㗔}A9h$IvB+c9廻t/п";%=Hw)S-5ԙ1{aԾgDޠO1S2gyՆO8:j!/Mo㶭 ɮdEBf;^3WmŤNuש39%ײA
}%w!m[^g>J.]ߚ|wW)WIS&`kپ*O*e
k2B@e;X,&x0Ʒƚ=ƙV}? 8a0 FwJhj$A])w_