设<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/78c7becdb7794603afc6127f804af645.plain?x-oss-process=image/sharpen,200"/> ,则<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/c6ba8129c5894404b0d93964c9748016.plain?x-oss-process=image/sharpen,200"/> 的值等于 ( )