Determinants Matrices Question 89
Question: If , then
Options:
A) $ f’(x)=0andf’’(x)=0 $ has one common root
B) $ f(x)=0andf’(x)=0 $ has one common root
C) sum of roots of $ f(x) $ =0 is $ -3a $
D) none of these
Show Answer
Answer:
Correct Answer: B
Solution:
- [b] Applying $ C_1\to C_1+C_2+C_3 $ , we get Applying $ R_1\to R_1-R_2 $ and $ R_2\to R_2-R_3 $ , we get