# O TRIGONOMETRIC IDENTITIES AND EQUATIONSMaxVerifying a trigonometric identityEspañolComplete the proof of the identity by choosing the Rule that justifies each stepcos2x-sin2x 2cos2x-1XTo see a detailed description of a Rule, select the More Information Button to the right of the Rule.RuleStatementsin xcOS xcos'x - ( - cosxАaRule?coS xCOS x21 + cos xRule?ECOS x- 2 cos.1Rule?X?1II TRIGONOMETRIC IDENTITIES AND EQUATIONSMaxVerifying a trigonometric identityEspañolComplete the proof of the identity by choosing the Rule that justifies each step.sin2x 2cos2x-12To see a detailed description of a Rule, select the More Information Button to the right of the RuleStatementRule22sin xCOS x(12AaRule ?ECOS XCOS x1cos xRule ?= COS x-RuleAlgebraReciprocalQuotientPythagorean?Odd/Even|4X

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Given,

Step 2

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