1.(√7+√3)(√7-√3)-√16=(√7)²-(√3)²-4=7+3-4=62.1.(√n)²+1=n+1,Sn=√n/22.√5,√10,S4=1,S9=3/23.S1²+S2²+S3²+S4²+S5²+S6²+S7²+S8²+S9²...
1.(√7+√3)(√7-√3)-√16=(√7)²-(√3)²-4=7+3-4=62.1.(√n)²+1=n+1,Sn=√n/22.√5,√10,S4=1,S9=3/23.S1²+S2²+S3²+S4²+S5²+S6²+S7²+S8²+S9²...