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netineya [11]
3 years ago
5

Cos θ = -3/5; θ is in QIII. What is sin θ? 4/5 -5/3 -4/5 5/3

Mathematics
1 answer:
Tatiana [17]3 years ago
3 0
Hello : 
<span>Cos θ = -3/5
sin</span>θ = - 4/5 
because : Cos² θ +sin²θ = (-3/5)²+(-4/5)2 =9/25+16/25 = 25/25 = 1
and θ is in QIII.where : sinθ <span>< 0</span>
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