Most Important Selected Qs for JEE AdvancedMathematicsBasics of Mathematics
The solution of the equation |x-1|^ ₃ x^2-2 ₈ 9 =(x-1)^7 is/are
Options
- A2
- B81
- C1 3
- D3
Correct answer
B. 81
Step-by-step solution
x-1 0 Taking log both sides ( ₃ x^2-2 _x 9 ) (x-1)=7 (x-1) x=81, 1 3 , 2 x 1 3 x=2,81