PLEASE HELP ME THANK U *0*Find the RATIO and the EXACT VALUE of the given Cos A.
2 answers:
Answer:
Step-by-step explanation:
take angle A as reference angle
using cos rule
cos A=adjacent/hypotenuse
cos A=12/13
cos A=0.92
A=cos 23
A=23 degree
for ratio,
cos A=12/13
Cos( A ) = AC / AB [ Ratio ]
Cos( A ) = 12 / 13 [ Ratio ]
Cos( A ) = 0. 92307 [ Exact value ]
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