7.Let [图] . Does [图]exists ?A、(A) Yes, since [图...
7.Let. Doesexists ?
A、(A) Yes, sincefor any, by pinching theorem,exists.
B、(B) Yes, sincefor any, by pinching theorem,exists.
C、(C) No, since there exists somesuch thatand somesuch that, we can't apply pinching theorem.
D、(D) None of above explanation is correct.