JEE Main2019Math
Q.
With the usual notation, in ABC, if + = 120°, a = and b = , then the ratio : , is :
- A
7 : 1
- B
3 : 1
- C
9 : 7
- D
5 : 3
Solution
With the usual notation, in ABC, if + = 120°, a = and b = , then the ratio : , is :
7 : 1
3 : 1
9 : 7
5 : 3