thout acduof he foloning() 21-23 i 9-941Q.Na "β-) Wnite ithe followin

1.	thout acduof he foloning() 21-23 i 9-941Q.Na "β-) Wnite ithe following as the same of twoConsecudive positive mumbens-
Answer» using identity a^2-b^2=(a-b)(a+b)hence 1) 21^2-20^2(21-20)(21+20)=141=412)34^2-33^2(34-33)(34+33)=167=673)95^2-94^2(95-94)(95+94)=1*189=189 q.no.9 15^2=225=112+11311^2=121=60+6119^2=361=180+181

thout acduof he foloning() 21-23 i 9-941Q.Na "β-) Wnite ithe following as the same of twoConsecudive positive mumbens-

Answer»

using identity a^2-b^2=(a-b)(a+b)hence 1) 21^2-20^2(21-20)(21+20)=1*41=412)34^2-33^2(34-33)(34+33)=1*67=673)95^2-94^2(95-94)(95+94)=1*189=189

q.no.9

15^2=225=112+11311^2=121=60+6119^2=361=180+181