No products in the cart.

  1. Homework Help
  2. CBSE
  3. Class 11
  4. Mathematics

If Cos(A+B)/cos(A-B) =sin(C+D)/sin(C-D). Prove that tanA …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Install Now
If Cos(A+B)/cos(A-B) =sin(C+D)/sin(C-D). Prove that tanA tanB tanC + tanD=0

    • Posted by Rohit Yadav 6 years, 7 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Daksh Khosla 4 years, 7 months ago

    cos(a+b) sin(c-d) = cos(a-b) sin(c+d)

    ( cosAcosB - sinAsinB) (sincCosD- cosC sinD) = ( cosAcosB + sinAsinB) (sincCosD+ cosC sinD)

    - cosA cosBcosCsinD - sinA sinB sinC cosD = cosA cosB cosC sinD + sinA sinB sinC cosD

    2 cosA cosBcosCsinD + 2sinA sinB sinC cosD=0

    sinA sinB sinC cosD = - cosA cosBcosCsinD

    tanA tanB tanC = - tanD

    tannA tanB tanC + tanD =0

    0Thank You

    ANSWER
    http://mycbseguide.com/examin8/

    Related Questions

    Option of photo

    • Posted by Rishi Raj Singh 2 days, 10 hours ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

    Few rules to keep homework help section safe, clean and informative.
    • Don't post personal information, mobile numbers and other details.
    • Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
    • Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
    • Ask specific question which are clear and concise.

    Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

    Posted by Not Fine Bro 🎭 1 month, 1 week ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    For all sets A,B and C Is (A-B) union (C-B)=(A union C)-B?

    • Posted by Shraddha Mathur 1 month ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    Find the centre and radius of the circle x2+y2-x+2y-3=0

    • Posted by Siddhi Jadhav 3 days, 9 hours ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    Derivative of cube root of tanx

    • Posted by Adi Manav 1 month, 2 weeks ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    What is sin60

    • Posted by Ullas Cs 1 month, 2 weeks ago

    CBSE > Class 11 > Mathematics
    • 4 answers
    Prove by mathematical induction that n(n+1) is even

    • Posted by Aditya Vinayak 1 month, 2 weeks ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    Solve cos2x -5sinx -3=0

    • Posted by Prince Kumar 1 month ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    Using logarithm find the value of: 5.364 ki power whole cube into 49.76 ki power half

    • Posted by Anant Gautam 2 weeks, 3 days ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    The difference between compound interest annually and simple interest on a certain sum for 2 years at 10% per annum is Rupees 250 .Find the sum

    • Posted by Rajpreet Kaur . 1 month, 1 week ago

    CBSE > Class 11 > Mathematics
    • 0 answers

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    Test Generator

    Test Generator

    Create papers online. It's FREE.

    Try Now

    CUET Mock Tests

    CUET Mock Tests

    75,000+ questions to practice only on myCBSEguide app

    Install Now
    Google Play

    Download myCBSEguide App

    All Courses

    Other Websites

    CBSE Courses

    Resources

    Corporate

    NCERT Solutions

    CBSE Sample Papers

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2024