JEE Main 2025 Mathematics question
If α + iβ and γ + iδ are the roots of , , then αγ + βδ is equal to :
Answer: (2)
Solution
Roots are 2–2i and 1+0i. So αγ + βδ = 2(1) + (–2)(0) = 2
If α + iβ and γ + iδ are the roots of , , then αγ + βδ is equal to :
Roots are 2–2i and 1+0i. So αγ + βδ = 2(1) + (–2)(0) = 2