设<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/b175783881454e22a7d327f16ebcff2a.plain?x-oss-process=image/sharpen,200"/> ,其中<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/61212a521ef24d939a238e7e769d5aaf.plain?x-oss-process=image/sharpen,200"/> ,则<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/480e8161ef574a26a1f031e3833ff7ab.plain?x-oss-process=image/sharpen,200"/> ( )