Thiendnguyen95 Thiendnguyen95

Today at 11:04 AM
Mathematics

Answered

Help please!!!! How did they get the answer? Please show your work! Thank you!

Help please!!!! How did they get the answer? Please show your work! Thank you! class=

Answer :

Today at 11:09 AM

7 ∫ cos(πx) dx
7 [ sin(πx)/π ]
7/π (sin(π/2) - sin(0))
7/π (1 - 0)
7/π ~ 7/3

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