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Limits and Derivatives — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSLimits and Derivatives3 Marks
Question
Find the derivative of function 2tan x - 7 sec x
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Answer

Here f(x) = 2 tan x - 7 sec x
$\therefore {\text{f}}(x) = \frac{d}{{dx}}[2\tan x - 7\sec x]$
$= 2\frac{d}{{dx}}(\tan x) - 7\frac{d}{{dx}}(\sec x)$
= 2 sec2x - 7sec x tan x

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