# Math Help - Triple Integration

1. ## Triple Integration

Find volume of solid region in first octant by triple integration:

Solid is bounded by elliptic cylinder 2x²+y²=1 and the plane y+z=1

So far I've gotten to:

$\int\nolimits_{0}^{\frac{1}{\sqrt {2} }} {dx}\int\nolimits_{0}^{\sqrt {1-2x^{2}} } {dy}\int\nolimits_{0}^{1-y} {dz}$

Is this on the right track?

2. Looks good so far. To avoid confusion, I would probably write the integral as

$\int_{0}^{\frac{1}{\sqrt {2} }} \int_{0}^{\sqrt {1-2x^{2}} } \int_{0}^{1-y} dz\,dy\,dx.$