Prove the identity. cos (a-x) = cotx cos Note that each Statement must be based on a Rule chosen from the Rule menu. To see a detailed description of a Rule, select the More Information Button to the right of the Rule. Statement Rule COS COST 2 -cos (-x) sin 0 sin (-x) Algebra DeO sin 5 cos cos sinx (D) - cos () - O sin (-x) Algebra cos cos x sin sin Validate This line is incorrect.

Q: Can you find the exact values of these 2 expressions. I sent a picture along with this.

A: Step 1: Step 2: Step 3: Step 4:

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A: An identity is an equation which is satisfied for all 'x' values in the domain.

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