Prior to iOS 18, if you wanted to figure out how to split a bill with your texting group from afar, you'd have to use your ...

Given any expression of the form \(a\cos x + b\sin x\) it is better to rewrite it into one of the forms \(k\cos (x \pm \alpha )\) or \(k\sin (x \pm \alpha )\) before answering the question. From this ...