CBSE Class 11-science Answered
Pls solve it.
![question image](https://images.topperlearning.com/topper/new-ate/topr_42432419440136361201906111525231.jpeg)
Asked by pb_ckt | 12 Jun, 2019, 14:36: PM
![begin mathsize 16px style fraction numerator sin 7 straight x plus sin 5 straight x plus sin 9 straight x plus sin 3 straight x over denominator cos 7 straight x plus cos 5 straight x plus cos 9 straight x plus cos 3 straight x end fraction end style](https://images.topperlearning.com/topper/tinymce/cache/d24341b132e0b96780eb34e9d9e5be94.png)
![begin mathsize 16px style equals fraction numerator sin 7 straight x plus sin 9 straight x plus sin 5 straight x plus sin 3 straight x over denominator cos 7 straight x plus cos 9 straight x plus cos 5 straight x plus cos 3 straight x end fraction end style](https://images.topperlearning.com/topper/tinymce/cache/5d846c536655af8d4e0483d1682ce2cb.png)
![begin mathsize 16px style equals fraction numerator 2 sin 8 xcosx plus 2 sin 4 xcosx over denominator 2 cos 8 xcosx plus 2 cos 4 xcosx end fraction end style](https://images.topperlearning.com/topper/tinymce/cache/4d1adfce42a111bb754b87cc6efa45ad.png)
![begin mathsize 16px style equals fraction numerator 2 cosx left parenthesis sin 8 straight x plus sin 4 straight x right parenthesis over denominator 2 cosx left parenthesis cos 8 straight x plus cos 4 straight x right parenthesis end fraction end style](https://images.topperlearning.com/topper/tinymce/cache/d8073755bbe6c10501ccd876c105af36.png)
![begin mathsize 16px style equals fraction numerator 2 sin 6 xcosx over denominator 2 cos 6 xcosx end fraction end style](https://images.topperlearning.com/topper/tinymce/cache/f6a493a50af5343f91e8db876fcdd323.png)
= tan6x
Answered by Sneha shidid | 12 Jun, 2019, 17:03: PM
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