Prove Cauchy-Schwartz inequality

MATHEMATICS · Subjective · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Prove Cauchy-Schwartz inequality (a⋅b)2≤∣a∣2⋅∣b∣2(\mathbf{a} \cdot \mathbf{b})^2 \le |\mathbf{a}|^2 \cdot |\mathbf{b}|^2

Related theory

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