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11th grade
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Trigonometry - Math
ืืจืืืื ืืืืจืื ืฉืืืื ืฉื 3 ืื ืืกืืืืช - 2 ืกืขืืคืื
ืืฃ ืขืืืื ืืืื ืืช ืชืจืืื ืืคืื ืงืฆืื ืงืืกืื ืืก
ืชืจืืื ืื ืื ืก ืฆืืขืืช ืืืืืืืช