Question

C=1.50+2.49+3.48+...................+49.2+50.1

Answer 1

C = 1.50 + 2.49 + 3.48 + ........ + 49.2 + 50.1 ( chia cả 2 vế cho 2 )

1/2 C = 1

=> C = 1.2

=> C = 2

Answer 2

C = 1.50 + 2.49 + 3.48 + ........ + 49.2 + 50.1 ﴾ chia cả 2 vế cho 2 ﴿

1/2 C = 1

=> C = 1.2

=> C = 2

Answer 3

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