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HELP! Problem is in the photo, it's about cosine
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5 votes
HELP! Problem is in the photo, it's about cosine

HELP! Problem is in the photo, it's about cosine-example-1
User Chirag Lukhi
by
8.1k points

1 Answer

7 votes

Answer: sina - cosa

Step-by-step explanation: Plug in a = 135 degrees. I hope the answer is correct!

User Dech
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7.5k points
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