Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Algebra Identities
If x = (√5 + 1)/(√5 - 1) and y = (√5 - 1)/(√5 + 1), then find the value of x2 - y2.
1
√5
2
2√5
3
3√5
4
More than one of the above
5
None of the above