Question

Integrate: (sinx+2cosx)^2

Answer 1

\[\large \int (sin(x) + 2cos(x))^2 = \int (sin^2(x) + 4sin(x)cos(x) + 4cos^2(x)\]
\[\large \int sin^2(x)dx + \int 4sin(x)cos(x)dx + \int 4cos^2(x)dx\]

Answer 2

\[\large \int sin^2(x)dx + 4\int sin(x)cos(x)dx + 4\int cos^2(x)dx\]

Doe that make it look any better?

Answer 3

thank you sorry my phone wouldn't let me see your reply yesterday! thank you very much