2cos²60° + 3sin45° - 3 sin230° + 2 cos290°
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2
Answer:
answer is 11/3
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Answered by
60
2cos²60° + 3sin45° - 3 sin230° + 2 cos290°
=2* 1 4 +3* 1 2 -3* 1 4 + 0
=( 1 2 + 3 2 -3 4 )
=( 2+6-3 4 )
=( 2+6-3 4 )
= 5/ 4
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