The-value-of-3-cot-20-4-cos-20-is- Tinku Tara June 14, 2023 None 0 Comments FacebookTweetPin Question Number 48528 by Pk1167156@gmail.com last updated on 25/Nov/18 Thevalueof3cot20°−4cos20°is Answered by math1967 last updated on 25/Nov/18 3cos20−4cos20sin20sin20=tan60cos20−2sin40sin20=sin60cos20cos60−2sin40sin20=2sin60cos20−2sin40sin20[1cos60=2]=sin(60+20)+sin(60−20)−2sin40sin20=sin80−sin40sin20=2sin20cos60sin20=1Ans Terms of Service Privacy Policy Contact: info@tinkutara.com FacebookTweetPin Post navigation Previous Previous post: If-xy-yz-zx-1-then-tan-1-x-tan-1-y-tan-1-z-Next Next post: The-number-of-times-the-digit-3-will-be-written-when-listing-the-integers-from-1-to-1000-is- Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Save my name, email, and website in this browser for the next time I comment.
![(((√3)cos20−4cos20sin20)/(sin20)) =((tan60cos20−2sin40)/(sin20)) =((((sin60cos20)/(cos60))−2sin40)/(sin20)) =((2sin60cos 20−2sin40)/(sin20)) [(1/(cos60))=2] =((sin(60+20)+sin (60−20)−2sin 40)/(sin 20)) =((sin80−sin40)/(sin20))=((2sin20cos60)/(sin 20))=1Ans](https://www.tinkutara.com/question/Q48554.png)