Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Relations and Functions Special Functions
If \(7^{log_7(x^2-4x+5)} = x-1\) then the value of x is:
1
x = 3, -2
2
x = 2, -3
3
x = -2, -3
4
More than one of the above
5
None of the above