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eqId687e2bb087614cfca983435653dcdc1feqIdffa24b4d468948f986d2c402b10a51a2eqIda2ed3414d4dd40348eda91a60a9bb583eqId0afebe524e7c4ababcfff35bdc9eeacf,则eqId65dfda809d5d47c9a46f977d59b295f6等于(  )
A.eqId18c57999a18a435b8420e97c41639876B.eqId0538e70434fa4b4890d2172bbf2e1041C.eqId40396e46a07043dba87f474a1e9ffc02D.eqId382fb653b3074a11b7df4d1e57dc6346
更新:2019/7/15难度系数:0.65题型:单选题组卷:271次
已知sin(eqId2bc4eb56ea6c40628a88e1c05f89f86ceqId738df0c03d044b1c8883151bdf6c0fc7,则sin(2eqIdac90872dff81424b8726e72eb60dcf8a)=__________.
更新:2019/6/29难度系数:0.85题型:填空题组卷:271次
已知eqIdc13953f2514e4c8f9c8aaaf5241c33ac是第二象限角,且eqId8f734327a84c4f89942b02dc4d8d9816,则eqIda0d7b6cb4d5741d49520b239ac55a314的值是(    )
A.eqId23f185e605fb47a49441e633779f0c0cB.eqIdaf2b0c3fb95b435c83d9385ce68fd687C.eqId686d0263e5a2496b9d2e7eaf867ba6f2D.eqId7548fe6a04274e8698eb983554e212b0
更新:2019/6/28难度系数:0.85题型:单选题组卷:320次
如图,点eqIdd7be5abad1e34f6db17a56660de8d54f是单位圆上的一个动点,它从初始位置eqIdf4216f09382841668c7ae051bc22d273(单位圆与eqIdc12aac8c2448479687a40735b3572a23轴正半轴的交点)开始沿单位圆按逆时针方向运动角eqIdfef303de34ec4a1cbdadf952fa3f16a2到达点eqId4706123858da4b86950be10e8299e54e,然后继续沿单位圆逆时针方向运动eqId87a9bbb6dd564186905f2064b8c22182到达点eqId9990883450304783a725a6741143063f,若点eqId9990883450304783a725a6741143063f的横坐标为eqIddbc81531b09c40389e19cbc41cf20cfd,则eqId4bd2cb4a8d53459aa079794ea145f887的值等于_________.figure
更新:2019/6/18难度系数:0.85题型:填空题组卷:72次
更新:2019/6/18难度系数:0.94题型:单选题组卷:242次
已知角eqIdc13953f2514e4c8f9c8aaaf5241c33ac的顶点在坐标原点,始边与x轴正半轴重合,将终边按逆时针方向旋转eqId62c5adee377b4699be1bd3c6acaf9470后,终边经过点eqIdce774fb597854413a7881c72e4a4c6d5,则eqId28aa29ad93314460a82353933a3aaef5(   )
A.eqId37f8f523aa894ce4aecfd7ff29203763B.eqId58b979bb7a9f412bb3828ff728d6c548C.eqId78ea767ccdee4884bf2e6cf158874028D.eqId23e56b7697ee4f609b0a9389e8fd13df
更新:2019/6/11难度系数:0.85题型:单选题组卷:239次
已知在△eqId8b26d5b4d5b448f0a91a35e9988d4472中,eqId6f8d5c10b643407baa639b219c929213
(Ⅰ)求角eqId8754ce8cf7f34f04abb9a0c041f57f5c的大小;    
(Ⅱ)求eqIdd8bf9fb511c84972bb76a93b879999b4的最大值.
更新:2019/6/8难度系数:0.85题型:解答题组卷:288次
已知函数
(1)求函数在区间上的最小值;
(2)若,求的值;
(3)若函数在区间上是单调递增函数,求正数的取值范围.
更新:2019/6/8难度系数:0.65题型:解答题组卷:319次
如图,在平面直角坐标系eqIdf6795042a6be4af49cb950f48e99a5ea中,角eqIdc13953f2514e4c8f9c8aaaf5241c33ac与角eqId2d9b8684718641418f716beac06c4c82均以eqId3be6d92012834a92abeee2761c13bc5d为始边,终边分别是射线OA和射线OB. 射线OA,OC与单位圆的交点分别为eqId58dda353fd4a47cdaa63505049af69faeqIda7874423bb314531ba17212b45d73606.若eqId70a901789f8c46f8bde42cd82adeb099,则eqId03059ff3a9444ef798f21e1a82aa6e2a的值是
figure
A.eqId1cc168bdd14a47cc81a6259d123aff41                                                   B. eqId91125fc0e83c438a8720030f9689891c
B.eqId7767a06958f542b18a28e7deb54067edC.eqId2834ae9a71814c6a84cd60e3b94d2e5f
更新:2019/6/4难度系数:0.85题型:单选题组卷:205次
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