T trig New member Joined Jul 17, 2006 Messages 1 Jul 17, 2006 #1 cosine anyone? if cos(54°) = 0.5878, then arccos(0.15878) =? If cos 54 deg =0.5878 then cos-1 0.15878 is equal to? Anyone?
cosine anyone? if cos(54°) = 0.5878, then arccos(0.15878) =? If cos 54 deg =0.5878 then cos-1 0.15878 is equal to? Anyone?
D Denis Senior Member Joined Feb 17, 2004 Messages 1,700 Jul 19, 2006 #2 I sure don't understand what you're asking...perhaps someone else will...
S soroban Elite Member Joined Jan 28, 2005 Messages 5,584 Jul 19, 2006 #3 Re: cosine anyone? if cos(54°) = 0.5878, then arccos(0.15878 Hello, trig! Did I interpret this correctly? \(\displaystyle \text{If }\,\cos54^o\:=\:0.5878\;\;\text{find }\cos^{^{-1}}(0.15878)\) Click to expand... We have: \(\displaystyle \,\cos\theta \,=\,x\) . . . and we must find: \(\displaystyle \,\cos^{^{-1}}\left(\frac{x\,+\,1}{10}\right)\) Good luck! .
Re: cosine anyone? if cos(54°) = 0.5878, then arccos(0.15878 Hello, trig! Did I interpret this correctly? \(\displaystyle \text{If }\,\cos54^o\:=\:0.5878\;\;\text{find }\cos^{^{-1}}(0.15878)\) Click to expand... We have: \(\displaystyle \,\cos\theta \,=\,x\) . . . and we must find: \(\displaystyle \,\cos^{^{-1}}\left(\frac{x\,+\,1}{10}\right)\) Good luck! .
