Search for: If in a triangle ABC, sinA:sinC=sin(A−B):sin(B−C) then, a2:b2:c2 are in If in a triangle ABC, sinA:sinC=sin(A−B):sin(B−C) then, a2:b2:c2 are in AA.P.BG.P.CH.P.Dnone of these Register to Get Free Mock Test and Study Material +91 Verify OTP Code (required) I agree to the terms and conditions and privacy policy. Solution:we have, tan8212∘=cot712∘=cos712sin712∘=2cos271∘22sin71∘2cos712=1+cos15∘sin15∘=1+3+1223−1=22+3+13−1=(22+3+1)(3+1)(3+1)(3−1)=26+22+3+3+3+12=6+2+4+3=2+3+4+6Post navigationPrevious: If cosθa=sinθb, then asec2θ+bcosec2θ is equal toNext: If x=ycos2π3=zcos4π3, then xy + yz + zx = Related content JEE Main 2023 Result: Session 1 NEET 2024 JEE Advanced 2023 NEET Rank Assurance Program | NEET Crash Course 2023 JEE Main 2023 Question Papers with Solutions JEE Main 2024 Syllabus Best Books for JEE Main 2024 JEE Advanced 2024: Exam date, Syllabus, Eligibility Criteria JEE Main 2024: Exam dates, Syllabus, Eligibility Criteria JEE 2024: Exam Date, Syllabus, Eligibility Criteria