SOLUTION: Find the exact value for Cos θ given that Sin θ= 5/7
I have this question in my book and I must not be setting it up right because I thought the answer was sqrt(74)/7,
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Question 606055: Find the exact value for Cos θ given that Sin θ= 5/7
I have this question in my book and I must not be setting it up right because I thought the answer was sqrt(74)/7, then I tried again and got the answer 24/7 and yet that still was incorrect. I cant seem to understand how to get the answer to this problem
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Find the exact value for Cos θ given that Sin θ= 5/7
you are given:
opposite side=5
hypotenuse=7
By pythagorean theorem, adjacent side=√(7^2-5^2)=√(49-25)=√24
cos θ=√24/7
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