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Grade: 12th pass 

                        
The derivation of f(tan x) w.r.t g(sec x) at x= pi/4 where f`(1)=2 and g`(sqrt2)=4 is
6 years ago

Answers : (1)

Vinod Kumar
askIITians Faculty
9 Points 
							[d(f(tanx))/dx] / [d(g(secx))/dx]=[(f '(tan(x))*sec2x] / [(g '(secx)) secx*tanx]
put x=pi/4

=[(f '(1)*(v2)^2] / [(g'(v2))*v2*1]
=(2*2) / (4*v2)

=1/v2


Thanks and Regards,
Vinod Kumar,
askIITians faculty,
IIT- Delhi
6 years ago
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