If tan A and tan B are the roots of x^2 – ax + b = 0, then the value of cos^2(A + B) is :-
1. a^2 / (a^2 + (1-b)^2
2.a^2 / (a^2 + (1+b)^2
3. 1+b / (a^2 + (1-b)^2
4. a^2 / (a+b)^2
Answers
Answer:
B) = a2/[a2 + (1 – b)2]
Explanation:
hope it will be helpful
Explanation:
⠀⠀* ⠀⠀⠀. . ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀✦⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀☄️ ⠀ ⠀⠀⠀⠀⠀⠀. . ﾟ . . ✦ , . ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀☀️ * . . . ✦⠀ , * ⠀ ⠀ , ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀. ⠀ ⠀. ˚ ⠀ ⠀ , . . *⠀ ⠀ ⠀✦⠀ . . . ⠀ . ˚ ﾟ . .⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀, * ⠀. . ⠀✦ ˚ * .⠀ . ⠀⠀⠀. ⠀⠀⠀✦ ⠀ ⠀ ⠀⠀⠀⠀⠀* ⠀⠀⠀. . ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀✦⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀☄️ ⠀ ⠀⠀⠀⠀⠀⠀. . ﾟ . . ✦ , . ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀☀️ * . . . ✦⠀ , * ⠀ ⠀ , ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀. ⠀ ⠀. ˚ ⠀ ⠀ , . . *⠀ ⠀ ⠀✦⠀ . . . ⠀ . ˚ ﾟ . .⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀, * ⠀. . ⠀✦ ˚ ⠀⠀* ⠀⠀⠀. . ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀✦⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀☄️ ⠀ ⠀⠀⠀⠀⠀⠀. . ﾟ . . ✦ , . ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀☀️ * . . . ✦⠀ , * ⠀ ⠀ , ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀. ⠀ ⠀. ˚ ⠀ ⠀ , . . *⠀ ⠀ ⠀✦⠀ . . . ⠀ . ˚ ﾟ . .⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀, * ⠀. . ⠀✦ ˚ * .⠀ . ⠀⠀⠀. ⠀⠀⠀✦ ⠀ ⠀ ⠀⠀⠀⠀⠀* ⠀⠀⠀. . ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀✦⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀☄️ ⠀ ⠀⠀⠀⠀⠀⠀. . ﾟ . . ✦ , . ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀☀️ * . . . ✦⠀ , * ⠀ ⠀ , ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀. ⠀ ⠀. ˚ ⠀ ⠀ , . . *⠀ ⠀ ⠀✦⠀ . . . ⠀ . ˚ ﾟ . .⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀, * ⠀. . ⠀✦ ˚ *