Highschool graduate dealing with a triple integral?

[Anshul23]

I recently came across a problem in Irodov which dealt with the gravitational field strength of a sphere. Took some time to get my head around it and figure how to frame a triple integral, but it felt good at the end. Am I going to start seeing triple integrals in the freshman year tho? If so what are some places to practice

 

[Riotto]

Triple (and higher) integrals will appear quite often in physics in several context. So if you enroll in physics major or engineering you'll definitely encounter triple integrals. Any good book on mathematics and mathematical physics deals with double and triple integrals. Triple integrals arise in vector calculus as well with the integrand being a vector. For instance, you may look at Spiegel's book on vector analysis.