Answer:
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Step-by-step explanation:
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Answer:
<h2>
21 no sure what the "i" means</h2>
Step-by-step explanation:
Answer: 1
Step-by-step explanation: It's subtraction and add ion look at the right side
You have to use a calculator for both of the exact values using sin^-1 or Cos^-1 you can then times those together, with the final part the answer is sin 240 as sin(A-B) = sinAcosB-CosASinB