That is the value of sine in
right angle triangle, if Coast 4/5
Answers
Answered by
1
Step-by-step explanation:
Cos●=4/5
sin●=under root5^2-4^2/5
=3/5
Answered by
0
if cos is 4/5
Step-by-step explanation:
AB/AC =4/5., AB/4=AC/5 AB/4=K,AC/5=K. ,AB=4K,AC=5K using Pythagoras theorem,. AC2=AB2+BC2. (5K)2=(4K)2+(BC)2. 16K2+(BC)2=25K2,BC2=9K2,BC=√9K2,BC=3K ,Sin=3K/5K,Sin=3/5
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