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Babynini
 one year ago
Find the exact value of
cos(arctan (9/40)) how do I do this? :)
Babynini
 one year ago
Find the exact value of cos(arctan (9/40)) how do I do this? :)

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Babynini
 one year ago
Best ResponseYou've already chosen the best response.1@jim_thompson5910 :) are you free?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434499638411:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1let theta = arctan(9/40), so tan(theta) = 9/40 because tan = opp/adj, we can apply these labels dw:1434499685266:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1what is the hypotenuse?

Babynini
 one year ago
Best ResponseYou've already chosen the best response.1is the reason that the opposite is 40 instead of 9 (since tan = opposite/adj) because it's inverse?

Babynini
 one year ago
Best ResponseYou've already chosen the best response.1hrrm I think you got that backwards actually..

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1oh right, I did lol

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434499832931:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434499865018:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1cos(arctan (9/40)) = cos(theta) since theta = arctan(9/40)
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