TRACY — Quick, the arithmetic sequences a1, a2, a3 ... and b1, b2, b3 ... consist of 40 distinct positive integers, and a20 + b14 equals 1,000. Compute the least possible value for b20 + a14. Stumped?

A computer-based course in Advanced Placement Calculus AB, developed at the Institute for Mathematical Studies in the Social Sciences at Stanford University, was completed by 13 gifted students in ...

Don't show this to your kids—Google Search and Lens can now solve advanced trigonometry, calculus, geometry, physics, and other science problems. Thanks to improved Search smarts, solving and ...