IIT JEE TRIGONOMETRIC FUNCTIONS If `(cos^4A)/(cos^2B)+(sin^4A)/(sin^2B)=1` then prove that `(i...
2,812 views · Published 21 September 2017 · 7:57 · Indexed 8 November 2026
Channel: Doubtnut · 2017 · Education
This is the Solution of question from Cengage Publication Math Book Trigonometry Chapter 6 TRIGONOMETRIC FUNCTIONS written By G. Tewani. You can Find Solution of all math questions from CENGAGE BOOK on our app DOUBTNUT for free. Download Doubtnut from - https://doubtnut.app.link/KtCdDNqHxR If `(cos^4A)/(cos^2B)+(sin^4A)/(sin^2B)=1` then prove that `(i)sin^4A+sin^4B=2sin^2Asin^2B` `(ii)(cos^4B)/(cos^2A)+(sin^4B)/(sin^2A)=1` ==== SCORE 100% WITH DOUBTNUT ==== Doubtnut ऍप पर आप कक्षा ६ से १२ (IIT JEE तक) के NCERT and IIT JEE Mains & Advanced के मैथ/गणित के सभी सवालों के वीडियो देखिये और मुफ्त में खोजिये किसी भी गणित सवाल का जवाब - १ लाख से भी ज़्यादा सवालों के जवाब हैं Doubtnut ऍप पर. Doubtnut App has video solutions of ALL the NCERT questions from Class 6 to 12 (including IIT JEE). You can also ask any Math question and get a video solution for FREE from a library of more than 1 Lakh Math Videos. #jeemains2019 #iitjeemaths #cengage #cengagemaths #cengagesolution #jeemains. ==== FOLLOW US ON==== Website : www.doubtnut.com Doubtnut PAGE: https://www.facebook.com/doubtnut DOUBTNUT IIT JEE Group: https://www.facebook.com/groups/251747588948573
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