bc calc daily attendance 1/21

 $If\ \frac{7-x}{\left(x-1\right)\left(2x+1\right)}\equiv\frac{A}{x-1\ }+\ \frac{B}{2x+1}.\ Find\ \ A\ and\ B$  

• 2 and 5

• -5 and -2

• 2 and  -5

• 2 and -2

 $If\ \frac{x-2}{\left(x-3\right)\left(2x+1\right)}\equiv\frac{A}{\left(x-3\right)}+\ \frac{B}{\left(2x+1\right)}.\ Find\ A\ and\ B$ 

• 1/7 and 5/7

• -1/7 and -5/7

• -1/7 and 5/7

• -5/7 and 1/7

 $\int_{ }^{ }\left(\frac{1}{\left(x+1\right)\left(x+2\right)}\right)dx$  

•  $\log\left|\frac{x+1}{x+2}\right|+C$  

•  $\log\left|\frac{x+2}{x+1}\right|+C$  

•  $\log\left|\left(x+1\right)\left(x+2\right)\right|+C$  

• none of these

• A

• B

• C

• D

• E

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.SSE.B.3