express this trignometric ratio
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Cosec theta = 1 / Sin theta
=) Sin theta = 1/Cosec theta ----eq.1
Tan theta = Sin theta / Cos theta
=) Sin theta = Tan theta × Cos Theta ------------eq.2
from eq. 1 and eq. 2
1 / Cosec theta = Tan theta × Cos theta
Cosec theta = 1 / (Tan theta × Cos theta)
=) Sin theta = 1/Cosec theta ----eq.1
Tan theta = Sin theta / Cos theta
=) Sin theta = Tan theta × Cos Theta ------------eq.2
from eq. 1 and eq. 2
1 / Cosec theta = Tan theta × Cos theta
Cosec theta = 1 / (Tan theta × Cos theta)
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