If cos theta is equal to 4 by 5 then find the value of cosecant theta
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Answer:
Cos theta = 4 / 5
To find cosec theta
Step-by-step explanation:
We know that ;
Sin² theta + cos² theta = 1
=> sin theta = √1 - cos²theta
=> cosec theta = 1 / √ 1 - cos² theta
=> cosec theta = 1 / √1 - (4 / 5)²
=> cosec theta = 5 / 3
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