Web22 mrt. 2024 · Question 12 If sin A + sin2 A = 1, then the value of the expression (cos2 A + cos4 A) is (A) 1 (B) 1/2 (C) 2 (D) 3 Given sin A + sin2 A = 1 sin A = 1 − sin2 A sin A = cos2 A Now, cos2 A + cos4 A = cos2 A + (cos2 A) 2 Putting cos2 A = sin A = sin A + sin2 A Given sin A + sin2 A = 1 = 1 So, the correct answer is (A) Web3 jan. 2024 · sin (A + B) = √3/2 and tan (A - B) = 1/√3. Concept Used: sin 60° = √3/2. tan 30° = 1/√3. Calculation: sin (A + B) = √3/2. as we know sin 60° = √3/2 (A + B) = 60 ----(i) …
Q9. sin (A + B) = 1 and sin (A – B) =1/2 ; 0° < A + B ≤ 90°; ∠A …
Web21 uur geleden · Volver a la noticia El récord de pactos Podemos-IU sin primarias abiertas evidencia el pulso de la cúpula 'morada' a Yolanda Díaz Cargando siguiente contenido. Otras webs de Unidad Editorial. Web3 jan. 2024 · Given: sin (A + B) = √3/2 and tan (A - B) = 1/√3 Concept Used: sin 60° = √3/2 tan 30° = 1/√3 Calculatio. Get Started. Exams. SSC Exams. Banking Exams. Teaching Exams. Civil Services Exam. Railways Exams. Engineering Recruitment Exams. Defence Exams. State Govt. Exams. Police Exams. Insurance Exams. Nursing Exams. Other … man with enlarged heart
If Sin(A+B)=1 and Cos(A-B)=root 3/2, A>B find the acute angles A & B …
Web24 okt. 2024 · Sin (A+B) = 1 Sin (A+B) = Sin 90o A + B = 90o A = 90o - B ............. (i) Cos (A-B) = √3/2 Cos (A-B) = Cos 30o A - B = 30o A = 30o + B ............. (ii) In equation (i) and (ii), 90o - B = 30o + B 90o - 30o = B + B 60o = 2B B = 60o/2 = 30o Putting the value of B is eq (i) A = 90o - B = 90o - 30o = 60o Hence, A = 60o and B = 30o Web1 dag geleden · La Organización Mundial de la Salud (OMS) investiga una subvariante de Ómicron, la XBB.1.16, también llamada Arcturus, que se ha detectado en al menos 22 países, entre ellos Estados Unidos. Web2 okt. 2024 · In an acute angled triangle ABC, if sin (A + B + C) = 1/2 and cos (B + C + A) = 1/ √2, find ∠A, ∠B and ∠C. trigonometry cbse class-10 1 Answer +1 vote answered Oct 2, 2024 by Ria (55.2k points) selected Oct 2, 2024 by faiz Best answer We have sin (A + B+ C) = 1/2 = sin 45 ° ← Prev Question Next Question → Find MCQs & Mock Test man with emu