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Lena
1 month ago
5

Review the proof of the identity cos(π − A) = −cosA.

Mathematics
2 answers:
lawyer [12.5K]1 month ago
6 0
Answer: error in step 1 Step-by-step explanation: Can you identify where the step lacks clarity? Remember that cos(pi) = -1 and sin(pi) = 0, which indicates that step 1 is odd... it didn’t distribute correctly. It should have been: cos(pi) - cos(A) Hope that is helpful! ^-^
Leona [12.6K]1 month ago
5 0
Answer: Step 1 on EDGE2020
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