Question: I'm looking for an online math calculator that can help me with algebra and trigonometry problems.

For an online math calculator that can handle algebra and trigonometry problems, SnapXam is a great option. This AI-powered tool provides step-by-step solutions to a variety of math problems in algebra, calculus, differential equations and trigonometry. It has a database of more than 5 million problems solved so far, as well as other tools like a math worksheet generator and an online step checker. SnapXam works on any device, but you can also use mobile apps for iOS and Android.

Another option is Symbolab, which can step you through calculations in algebra, trigonometry, calculus and geometry. It also can handle word problems and offers interactive personalized exercises and quizzes. Symbolab features include a progress dashboard, calculators for instantaneous derivatives and integrals, and a notebook to record notes and solutions to problems. It's available in multiple languages and puts a priority on user privacy.

Wolfram|Alpha is another general-purpose tool that can step you through a wide range of math subjects, including algebra and trigonometry. It also covers other subjects like science, technology, culture and everyday living. With tools like function plotting, statistical calculations and differential equation solving, Wolfram|Alpha can be useful for both academic and real-world situations, and it has a premium version with more features.