Question

Tan, tan are the roots of x

2+px+q=0 (pq) then tan (+) = ?

Answer 1

Answer:

solved

Step-by-step explanation:

let tan ∝ , tan β be  the roots of

x²+px+q=0

then

tan∝ + tanβ = - p

tan∝ tanβ = q

then

tan( ∝ + β) = tan∝ + tanβ  ÷ 1 - tan∝tanβ  = - p ÷ 1 - q = p ÷ q - 1