Mathematics
Senior High
Resolved
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= 12sin 0 cos 0 - 2√3
= 6sin 20-2√3 cos 20 +7
= 2√3(√3 sin 20 -cos 20)+7
2
= 4√3 sin (20-30°) +7
(cos20-sin²0) + 7
denbord
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