5.
设椭圆的参数方程为\(\begin{cases} x=a\cos θ, \\ y=b\sin θ \end{cases}\)\((0\leqslant θ\leqslant π)\),\(M(x\)\({\,\!}_{1}\),\(y\)\({\,\!}_{1}\)\()\),\(N(x\)\({\,\!}_{2}\),\(y\)\({\,\!}_{2}\)\()\)是椭圆上两点\(.M\),\(N\)对应的参数为\(θ\)\({\,\!}_{1}\),\(θ\)\({\,\!}_{2}\)且\(x\)\({\,\!}_{1}\)\( < x\)\({\,\!}_{2}\),则\(θ\)\({\,\!}_{1}\),\(θ\)\({\,\!}_{2}\)大小关系是________.