若序列<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/9837de70d0444ae9b678871a7fe7f6b6.plain?x-oss-process=image/sharpen,200"/> 的取值范围<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/2c6a3292e20a42439571879e500f1011.plain?x-oss-process=image/sharpen,200"/> , 序列<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/23a0155c3bae4205aa27d99dc82dc39f.plain?x-oss-process=image/sharpen,200"/> , 且其取值范围为<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/50bb4cf02cd649d2b2e944514cfefbae.plain?x-oss-process=image/sharpen,200"/> , 则序列<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/8254b6e1dd474ff4ace0d4212f444cb4.plain?x-oss-process=image/sharpen,200"/> 的取值范围为( )。