# Thread: URGENT: antidifferentiation using u substitution

1. ## URGENT: antidifferentiation using u substitution

the integral of cos(1-x squared) dx
im not sure what to do after i substitute u=1-x squared

2. Originally Posted by cottekr
the integral of cos(1-x squared) dx
im not sure what to do after i substitute u=1-x squared
If your question is find $\int \cos (1 - x^2) \, dx$ then I doubt an answer exists in terms of a finite number of elementary functions.

Where has the question come from?