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(本小题满分12分)在锐角△中,角的对边分别为,. (1)求角的大小. (2)求...

(本小题满分12分)在锐角△6ec8aac122bd4f6e中,角6ec8aac122bd4f6e6ec8aac122bd4f6e6ec8aac122bd4f6e的对边分别为6ec8aac122bd4f6e6ec8aac122bd4f6e6ec8aac122bd4f6e,6ec8aac122bd4f6e.  (1)求角6ec8aac122bd4f6e的大小.

(2)求6ec8aac122bd4f6e的值.

 

(1) (2) 【解析】(1)                               2分                                   4分                                                              5分  (2)                                            6分                                                8分                                                                                                            10分                                                             12分
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