cot x= -1 and cot y = -4/3 are given find cot ( x-y )
Matematika
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Pertanyaan
cot x= -1 and cot y = -4/3 are given find cot ( x-y )
1 Jawaban
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1. Jawaban DB45
Trigonometri
cot x = - 1
cot y = - 4/3
cot (x -y) = (cot x - cot y )/ (1 + cot x. cot y)
cot ( x- y)= ( -1 + 4/3) / ( 1 + (-1)(-4/3))
cot (x - y) = ( 1/3) / ( 1 + 4/3) = (1/3)/ (7/3)
cot (x -y)= 1/7