Question

Aratati ca :
log2($\sqrt{7} + \sqrt{3}$) + log2($\sqrt{7} } - \sqrt{3}$)=2

Answer 1

log2[(√7+√3)*(√7-√3)]=2
log2(√7²-√3²)=2
log2(7-3)=2
log2(4)=2
2=2 (A)