olymmath

HMMT 1998 V2

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How many values of x,−19<x<98x,-19<x<98, satisfy

cos⁡2x+2sin⁡2x=1?\cos ^{2} x+2 \sin ^{2} x=1 ?

Dataset text NuminaMath olympiads. Quoted with source.

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Locator hmmt/1998/v2 · Tag 2RATTACAVY · Edit this page on GitHub · Keys: j next, k previous