Gujarat BoardEnglish MediumSTD 11 ScienceMATHSDerivatives4 Marks
Question
Differentiate the following functions with respect to x:$\frac{\text{x}+\cos\text{x}}{\tan\text{x}}$
✓
Answer
We have,$\frac{\text{d}}{\text{dx}}\Big(\frac{\text{x}+\cos\text{x}}{\tan\text{x}}\Big)$
Using quotient rule, we get
$\frac{(\tan\text{x})\frac{\text{d}}{\text{dx}}(\text{x}+\cos\text{x})-(\text{x}+\cos\text{x})\frac{\text{d}}{\text{dx}}(\tan\text{x})}{(\tan^2\text{x})}$
$=\frac{\tan\text{x}\Big\{1+(-\sin\text{x})\Big\}-(\text{x}+\cos\text{x})\sec^2\text{x}}{(\tan^2\text{x})}$
$=\frac{(1-\sin\text{x})\tan\text{x}-(\text{x}+\cos\text{x})\sec^2\text{x}}{(\tan^2\text{x})}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.