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(d/dx){log(secx+tanx)}=
  • a)
    cos x
  • b)
    sec x
  • c)
    tan x
  • d)
    cot x
Correct answer is option 'B'. Can you explain this answer?
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(d/dx){log(secx+tanx)}=a)cos xb)sec xc)tan xd)cot xCorrect answer is o...
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(d/dx){log(secx+tanx)}=a)cos xb)sec xc)tan xd)cot xCorrect answer is o...
Explanation:

Given function:
Let's first write down the given function:
f(x) = log(sec(x) + tan(x))

Derivative of the given function:
To find the derivative of the given function, we will use the chain rule. The derivative of log(u) is 1/u times the derivative of u.
So, we have:
(f(x))' = (1/(sec(x) + tan(x))) * (sec(x) + tan(x))'
= (sec(x) + tan(x))' / (sec(x) + tan(x))
= (sec(x)tan(x) + sec^2(x)) / (sec(x) + tan(x))
= sec(x)(tan(x) + sec(x)) / (sec(x) + tan(x))
= sec(x)

Correct answer:
From the derivative we found above, we can see that the correct answer is option B. sec x. The derivative of log(sec(x) + tan(x)) with respect to x is sec x.
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(d/dx){log(secx+tanx)}=a)cos xb)sec xc)tan xd)cot xCorrect answer is option 'B'. Can you explain this answer?
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