- #1

karush

Gold Member

MHB

- 3,269

- 5

$$\int_0^{2\pi}\sqrt{\dfrac{1-\cos{x}}{2}}\,dx$$

ok my baby step is

$$\int _0^{2\pi }\frac{\sqrt{1-\cos \left(x\right)}}{\sqrt{2}}dx$$

then ?

W|A said the answer was 4