Question

Please help me with this question

Answer 1

C

Explanation:

The addition formula for the tangent ratio is

tan(x + y) =
`(tanx+tany)/(1-tanxtany)`

Thus the expansion of

tan(60 + 45) =
`(tan60+tan45)/(1-tan60tan45)` → C

Answer 2

you can't cheat in an online school math test =_=

Explanation: