if 180°<theta<270°and sin theta =-4/5,then cosec theta/2
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Cosec θ = 1/ Sinθ
= 1/ (-4/5)
= -5/4
Cosecθ / 2 = (-5/4)/ 2
= -5/8
∴ Cosecθ / 2 = -5/8
= 1/ (-4/5)
= -5/4
Cosecθ / 2 = (-5/4)/ 2
= -5/8
∴ Cosecθ / 2 = -5/8
Answered by
8
Answer:
sin value is 1/5 and cos value is_2/root5
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