试证明下列逻辑恒等式（方法不限):

A . 正确 B . 错误

A . A+¯A=1 B . A+1=1 C . A.A=A. D . A+0=0

A . 并项法 B . 吸收法 C . 消去法 D . 对偶法

A . 全部账户借方本期增加额合计=全部账户贷方本期增加额合计 B . 全部账户借方期初余额合计=全部账户贷方期初余额合计 C . 全部账户借方期末余额合计=全部账户贷方期末余额合计 D . 全部账户借方本期减少额合计=全部账户贷方本期减少额合计 E . 全部账户借方本期发生额合计=全部账户贷方本期发生额合计

A . 正确 B . 错误

A . 正确 B . 错误

<img src='https://img2.soutiyun.com/ask/2021-01-01/978371236317231.png' /> <img src='https://img2.soutiyun.com/ask/2021-01-01/978371244651707.png' /> <img src='https://img2.soutiyun.com/ask/2021-01-01/978371252682167.png' /> <img src='https://img2.soutiyun.com/ask/2021-01-01/978371260513615.png' />

<img src='https://img2.soutiyun.com/ask/2020-12-18/977159536031373.png' />

<img src='https://img2.soutiyun.com/ask/2021-02-25/983103268676467.png' />

<img src='https://img2.soutiyun.com/ask/2021-02-03/981199421509171.png' />

发生额试算平衡是根据资产与权益的恒等关系，检验本期发生额记录是否正确的方法。( )

<img src='https://img2.soutiyun.com/ask/2020-08-17/966519866012407.png' />

发生额试算平衡是根据资产与权益的恒等关系，检验本期发生额记录是否正确的方法。 () A．正确 B．错误

对 错

<img src='https://img2.soutiyun.com/ask/2020-10-12/97136417947982.png' />

<img src='https://img2.soutiyun.com/ask/2020-09-14/968966896570254.png' />

<img src='https://img2.soutiyun.com/ask/2021-01-10/979154285328055.png' />

<img src='https://img2.soutiyun.com/ask/2020-08-18/966592341835058.png' />

考虑下列修正的牛顿公式(单点Steffensen方法) <img src='https://img2.soutiyun.com/ask/2020-09-10/968583151416147.png' /> 设f(x)有二阶连续导数,<img src='https://img2.soutiyun.com/ask/2020-09-10/968583169623188.png' />试证明该方法是二阶收敛的.