36009:х=156-147
х=36009:9
х=4001
125мм=12см5мм
247см=24дм7см
128см=1м28см
24см5мм=245мм
5дм25мм=5025мм
3м38см=338см
<span>Cos2x*Ctg3x-Sin2x-√2*Cos5x=0 ;
</span><span>Cos2x*Cos3x/Sin3x -Sin2x-√2*Cos5x ;
</span>Cos2x*Cos3x - Sin2x *Sin3x - √2*Cos5x *<span>Sin3x =0 ;
</span>* * *Cos2x*Cos3x - Sin2x *Sin3x =Cos(2x +3x) =Cos5x * * *
Cos5x- <span>√ 2*Cos5x*Sin3x =0 ;
</span>Cos5x- (1- <span>√ 2*Sin3x) =0 ;
</span>[ Cos5x =0 ; 1- √ 2*Sin3<span>x </span>=0 ⇔[ Cos5x =0 ;Sin3x =1/√2 ⇔
[ 5x =π/2 +πn ; 3x =(-1) ^ n *π/4 +π*n , n ∈Z.
[ x =π/10 +(π/5)*n ; x =(-1) ^ n *π/12 +(π/3)*n , n ∈Z.<span> </span>