已知数列 https://assets.asklib.com/psource/201603011720279694.jpg 为等差数列,且 https://assets.asklib.com/psource/2016030117202829862.jpg ,则 https://assets.asklib.com/psource/2016030117203174856.jpg ()。
已知https://assets.asklib.com/source/1472610606774056508.png ,则 https://assets.asklib.com/source/1472610619605060897.png
已知https://assets.asklib.com/source/1470362228579056846.png = https://assets.asklib.com/source/1470362238158031118.png ,那么x的值是:
已知 https://assets.asklib.com/psource/2016031017201984588.jpg 为75°, https://assets.asklib.com/psource/2016031017203983634.jpg 的值为()。
下列命题等式中,错误的是()https://assets.asklib.com/psource/2016071616185447701.jpg
已知 https://assets.asklib.com/images/image2/2017052114183461881.jpg ,则() https://assets.asklib.com/images/image2/2017052114182084543.jpg
已知 https://assets.asklib.com/psource/2016031017165191784.jpg 的值,则 https://assets.asklib.com/psource/201603101717052927.jpg 的值为()。
已知 https://assets.asklib.com/psource/2016030216173751529.jpg ,求证 https://assets.asklib.com/psource/201603021617396901.jpg 。
有四个三角函数命题: https://assets.asklib.com/psource/2016030615431660442.jpg 其中假命题个数为()。
已知 https://assets.asklib.com/psource/201510301050182066.jpg ,则 https://assets.asklib.com/psource/2015103010504056783.jpg 为()。
已知 https://assets.asklib.com/psource/2014110708515622763.jpg 为单位脉冲函数,则积分 https://assets.asklib.com/psource/2014110708521632088.jpg 的函数值为()。
已知 https://assets.asklib.com/psource/2016030217134272407.jpg ,则f(k+1)=()。 https://assets.asklib.com/psource/2016030217134444565.jpg
已知边长 https://assets.asklib.com/psource/2016071710544941816.jpg ,方位角 https://assets.asklib.com/psource/2016071710545061361.jpg ,则 https://assets.asklib.com/psource/201607171054531993.jpg 和 https://assets.asklib.com/psource/2016071710545561685.jpg 分别为:()
已知函数https://assets.asklib.com/source/1469154869509074272.png 求其定义域及函数值 https://assets.asklib.com/source/1469154883965020220.png ( ).
已知https://assets.asklib.com/source/1473389091191086934.png ,且 https://assets.asklib.com/source/1473389097981011379.png ,常数R=()。
已知 https://assets.asklib.com/psource/2016071715490133853.jpg ,则 https://assets.asklib.com/psource/2016071715490360571.jpg 等于:()
已知 https://assets.asklib.com/psource/201510301113553764.jpg ,则 https://assets.asklib.com/psource/2015103011142335663.jpg 等于()。
已知 https://assets.asklib.com/psource/2015102916093334278.jpg ,则 https://assets.asklib.com/psource/2015102916094999549.jpg =()。
已知函数https://assets.asklib.com/source/1471497314691006901.png 确定的隐函数,则 https://assets.asklib.com/source/1471497335872086931.png ()。
已知f(x)的原函数为 https://assets.asklib.com/psource/2016071616173232033.jpg =() https://assets.asklib.com/psource/2016071616172745358.jpg
已知实数x,y,满足:https://assets.asklib.com/source/1472010172170097067.png , https://assets.asklib.com/source/1472010192223018436.png
已知 https://assets.asklib.com/psource/2014123108591180389.png 求Hb及Pc。 https://assets.asklib.com/psource/2014123108594911096.png
已知 https://assets.asklib.com/psource/2016031017220280848.jpg 为750, https://assets.asklib.com/psource/201603101722118761.jpg 为15°,则 https://assets.asklib.com/psource/2016031017222537988.jpg 的值为()。
有下列两组命题 https://assets.asklib.com/psource/2014101714464746775.jpg B组中命题正确,且能用A组命题加以正确解释的是()