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Let's boycott Calculus this time! (Part 2)

Geometry Level 2

Find the largest value of \(a\), such that for all real \( x \),

\[ \cos^2 x + \sec^2 x \geq a. \]

Try out Part 1, Part 3.

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Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

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including olympiad champions, researchers, and professionals.

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by Arkajyoti Banerjee

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