Question

Diketahui Cosec = 5/3 , berapa nilai Sin A ? Cos A ? dan Tan A ? beserta caranya

Answer 1

Cosec A = 5/3

Ingat: cosec A = 1/sin A

Sehingga: sin A = 1/cosec A = 1/(5/3) = 3/5

Ingat: sin² A + cos² A = 1

Sehingga: ()² + cos² A = 1
<=> cos² A = 1 - ()²
<=> cos² A = 1 -
<=> cos² A = 
<=> cos A = 
<=> cos A = 

tan A =
<=> tan A = () / ()
<=> tan A =