A:look in
B:look like
C:look at
jiā tíng
zhì huì
qiāo xiǎng
wēi xié
____
θ∈0,π,cosθι=34,则tanθ2=( )
求下列各式中x的值.
(1)x2=5
(2)x2﹣5=49
(3)(x﹣2)2=125
(4)(y+3)3+64=0.
do, choose, play, go, sing, have, sleep, talk