- 4
-
证明
上是增函数
- 6
-
简化
- A.<img src="//img1.yqda.net/question-name/60/9cc455906e5303da22ceefa0db8634.png" width="46" height="18"/>
- B.<img src="//img1.yqda.net/question-name/ef/b87542b395b6f848abccb509051546.png" width="46" height="18"/>
- C.<img src="//img1.yqda.net/question-name/5b/496f24b273dc284d43fcdc96aa1462.png" width="43" height="18"/>
- D.<img src="//img1.yqda.net/question-name/26/b17c7957717eb91a10c07c3121fbb5.png" width="46" height="20"/>
- A.<img src="//img1.yqda.net/question-name/a6/f28534ea3f209b25db5d78525b08a1.png" width="32" height="24"/>
- B.<img src="//img1.yqda.net/question-name/7e/5d8f93a09e3e4cd22fe8046f24eb36.png" width="35" height="46"/>
- C.100
- D.不确定
- A.<img src="//img1.yqda.net/question-name/cc/f734225acb154d1510a9f3df396f2b.png" width="86" height="42"/>
- B.<img src="//img1.yqda.net/question-name/01/d01d57fc56cdf75391f804dcd6e398.png" width="59" height="42"/>
- C.<img src="//img1.yqda.net/question-name/43/1471c5117d26ae47dfa7cf5f6b2c04.png" width="79" height="42"/>
- D.<img src="//img1.yqda.net/question-name/d5/e1ae7a43709632e1b909b762e8bee5.png" width="90" height="42"/>
- 16
-
A=
,是AB=
的()
- A.充分条件
- B.必要条件
- C.充要条件
- D.既不充分也不必要条件
- A.30
- B.40
- C.50
- D.60
- A.30°
- B.45°
- C.60°
- D.不能确定
- A.3
- B.4
- C.6
- D.8
- A.<img src="//img1.yqda.net/question-name/50/8470f6cb91904d29dcac0cd4993782.png" width="27" height="42"/>
- B.-3
- C.<img src="//img1.yqda.net/question-name/57/afe0a2939486d9d2beaf6457584600.png" width="15" height="42"/>
- D.3
- A.-2
- B.0
- C.2
- D.1
- A.30°
- B.45°
- C.60°
- D.90°