The task is to prove the trigonometric identity that tan(x1+x2) = (tan(x1) + tan(x2)) / (1 - tan(x1)tan(x2)). This involves using the sum of angles formula for tangent and manipulating the expression to show that the left-hand side is equal to the right-hand side. By simplifying both sides of the equation and showing that they are equal, we can confirm that the identity is correct. **

To prove that tan(x1+x2) = (tan(x1) + tan(x2)) / (1 - tan(x1)tan(x2)) is correct, one would need to use trigonometric identities such as the sum-to-product formula and the tangent addition formula. By manipulating the expressions using these identities, one can show that both sides of the equation are equivalent. It is important to carefully follow the steps of the proof and ensure that each manipulation is mathematically sound in order to confirm the correctness of the statement. **

No, a cylindrical prism is not a prism with infinitely many edges. A cylindrical prism is a type of prism that has two parallel and congruent circular bases, and its lateral surface is curved. It has a finite number of edges, which are the lines where the faces of the prism meet. In contrast, a prism with infinitely many edges would have an infinite number of faces meeting at each vertex, which is not the case for a cylindrical prism. **

To show that the equation tan(x1+x2) = (tan(x1) + tan(x2)) / (1 - tan(x1)tan(x2)) is correct, we can start by using the sum formula for tangent, which states that tan(x1+x2) = (tan(x1) + tan(x2)) / (1 - tan(x1)tan(x2)). We can then substitute the values of tan(x1) and tan(x2) into the equation and simplify both sides to see if they are equal. Finally, we can verify the result by checking if both sides of the equation are equal for different values of x1 and x2. **

The choice between sub or dub ultimately comes down to personal preference. Some people prefer watching anime with subtitles (sub) to experience the original voice acting and cultural nuances, while others prefer dubbed versions for easier understanding and convenience. Both options have their pros and cons, so it's best to try both and see which one you enjoy more. **

The choice between dub or sub ultimately comes down to personal preference. Some people prefer watching anime with the original Japanese audio and reading subtitles (sub) to experience the voice acting as intended by the creators. On the other hand, others prefer watching dubbed versions with English voice actors for a more immersive viewing experience. Both options have their own merits, so it's best to try both and see which one you enjoy more. **

I think the German dub of Jojo's Bizarre Adventure is well done and captures the essence of the original Japanese version. The voice acting is strong and the translation is faithful to the original dialogue. Overall, the German dub provides an enjoyable viewing experience for fans of the series who prefer to watch in their native language. **

No, this is not a prism. A prism is a three-dimensional shape with two parallel and congruent polygonal bases connected by rectangular faces. This object appears to be a rectangular box with a lid, which does not fit the definition of a prism. **