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## Main Question or Discussion Point

I have a few quick problems concering evaluating integrals by trigonometric substitution. I guess I will just post five that way if anyone can help with any, would be greatly appreciated. Also: if anyone could inform me on how to input the actual equations onto this forum as I have seen in some posts, I would also greatly appreciate that.

1) The integral of (3x² + x - 1) onto the square root of (1 - x²)dx

2) The integral of 1 all over the square root of (16 + 25x²) dx

3) The integral of 1 all over the square root of (36x² - 25) dx

4) The integral of 1 all over the square root of (3 - 2x - x²) dx

5) The integral of the square root of (10 - 4x + 4x²)dx

Again I apologize if that is hard to understand if anyone could tell me quickly how to offer an easier way to display problems, I would be very thankful.

Thanks in advance,

Brian

1) The integral of (3x² + x - 1) onto the square root of (1 - x²)dx

2) The integral of 1 all over the square root of (16 + 25x²) dx

3) The integral of 1 all over the square root of (36x² - 25) dx

4) The integral of 1 all over the square root of (3 - 2x - x²) dx

5) The integral of the square root of (10 - 4x + 4x²)dx

Again I apologize if that is hard to understand if anyone could tell me quickly how to offer an easier way to display problems, I would be very thankful.

Thanks in advance,

Brian