1.

ype I+na_n(n+1)(2 ilmifstatement i2 +22+3Show that P (1), P (2) and P (3) aOW

Answer»

P(1) L.H.S.=1*1=1 R.H.S.=1(2)(3)/6=1 P(2) L.H.S.=1*1+2*2=1+4=5 R.H.S.=2(3)(5)/6=5 P(3) L.H.S.=1*1+2*2+3*3=1+4+9=14 R.H.S.=3(4)(7)/6=14



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