Question

Derivative of log (sec x+tan x)

Answer 1

Answer:

secx

Step-by-step explanation:

dlog(secx+tanx)/d(secx+tanx)*d(secx+tanx)/dx

=(1/secx+tanx)*(secx*tanx+sec²x)

=secx*tanx+sec²x/secx+tanx

=secx{tanx+secx}/secx+tanx

=secx

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