25. find the other trignometric function if tanze ze lies in 4th quadrant. 5 12.
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Answer:
x=-5/12, x lies in fourth quadrant.
if x lies in fourth quadrant so, cosx and secx will be +ve.
cosx= 5/12 , secx= 12/5
sin^2x+cos^2x=1
sin^2x= 1-cos^2
sin^2x=1-(5/12)^2
sin^2x=1-25/144
sin^2x= 144-25/144= 119/144
sinx = v119/144= v119/12
sinx = v119/12, cosecx = 12/√119
sec^2x - tan^2x =1
sec^2x -1 = tan^2x
(12/5)^2 -1 = tan^2x
144/25 -1 = tan^2x
144-25/25 = tan^2x
tan^2x= 119/25
tanx = v119/25
tanx = √119/5, cotx= 5/√119
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