The assignment was daunting:
To Maxim, the page looked like a battlefield of sines, cosines, and tangents. He stared at Exercise 3.42. The equation was a monster—a tangle of double angles and fractions that seemed designed to keep him from sleeping. He sighed, the scent of old paper and graphite filling the air. "Okay, Nikolsky," he whispered, "let's see who wins."
He started by breaking down the formula, step by step. He remembered his teacher’s voice: “Look for the identity first.” Slowly, the chaos on the page began to organize. He factored out a common term, watched a complex fraction cancel out into a simple 1 , and felt a small jolt of adrenaline.
It was 11:30 PM, and the only light in Maxim’s room came from a desk lamp reflecting off the glossy cover of his textbook.
