diketahui sin α° = 4/5, cos β° = 7/25. sin α° cos β° + cos α° sin β° = ?
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            diketahui sin α° = 4/5, cos β° = 7/25.  sin α° cos β° + cos α° sin β° = ?
               
            
               2 Jawaban
            
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			  	1. Jawaban Wan98sin α° = 4/5 maka cos α° = 3/5
 cos β° = 7/25 maka sin β° = 24/25
 nilai
 sin α cos β + cos α sin β
 = (4/5 × 7/25) + (3/5 × 24/25)
 = 28/125 + 72/125
 = 100/125
 = 4/5
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