Websinθ = cos 2 θ ... (i) cos 12 θ + 3 cos 10 θ + 3 cos 8 θ + cos 6 θ - 1 = (cos 4 θ + cos 2 θ) 3 - 1 = (sin 2 θ + cos 2 θ) 2 - 1 = (1) 2 - 1 = 0 50 Views Switch Flag Bookmark Advertisement 117. If and are positive then the smallest value of is 60 Views Answer 118. The value of tan 315° cot (-405°) is equal to -1 1 0 2 112 Views Answer Advertisement Web(sin 2θ)(2−sinθ)=2sin2θ−sin4θ sin2θ−cos2θ cos θsin sin2θ+cos2θ cosθsinθ =2sinθ−1 2Distribute sin Cancel common denominator 2sin 2θ−sin4θ=2sinθ−sin4θ sin 2θ−cos2θ sin2θ+cos2θ =2sin2θ−1 **Keep in mind you could have distributed and Use PI then used “which one doesn’t belong” 2 sin 2θ−cos2θ 1
If 2sin2 θ – cos2 θ = 2, then find the value of θ
Web30 mrt. 2024 · Question 13 If x = 2 sin2𝜃 and y = 2cos2𝜃 + 1, then find x + yNow, x + y = 2 sin2𝜃 + 2 cos2𝜃 + 1 = 2 (sin2𝜃 + cos2𝜃) + 1 Putting sin2𝜃 + cos2𝜃 = 1 = 2 × 1 + 1 = 2 + 1 = 3. … WebIf cot2θ = 1/√3 then the value of cot3θ is equal to (Take 0° ≤ θ ≤ 90°) 2/√3 1 √3 0 Answer (Detailed Solution Below) Option 4 : 0 Crack UP Govt. Job with India's Super Teachers FREE Demo Classes Available* Explore Supercoaching For FREE Free Tests View all Free tests > Free UP Lekhpal : Full Test 1 1.4 Lakh Users 100 Questions 100 Marks 120 Mins probasics steel adult walker
If tan θ = 2/3, then sin θ = ? - GeeksforGeeks
WebSolution Given: 2 sin 2 θ – cos 2 θ = 2 ⇒ 2 sin 2 θ – (1 – sin 2 θ) = 2 ........ [∵ sin 2 θ + cos 2 θ = 1 ⇒ cos 2 θ = 1 – sin 2 θ] ⇒ 2 sin 2 θ – 1 + sin 2 θ = 2 ⇒ 3 sin 2 θ = 3 ⇒ sin 2 θ = 1 … WebIf sin 2 θ - 2 cos θ + 1 4 = 0, then the general value of θ is Q. If tan 2 ( θ) - ( 1 + 3) tan ( θ) + 3 = 0, then the general value of θ is Q. If tan 2 θ tan θ = 1, then the general value of θ is Q. If tan 3 θ - 1 tan 3 θ + 1 = 3, then the general value of θ is Q. If sin 2 θ = 1 4, then the most general value of θ is View More Intersection WebFind the value of θ,ifcos2θ=sin450 cos450+sin300−. Q. If secθ=cos2θ then find the value of sin4θ+2sin3θ+sin2θ. Q. Question 12. If 2 sin2 θ−cos2 θ=2, then find the value of θ. Q. probasics shower chair with back