WebIf 1+sin2θ=3sinθcosθ, then prove that tanθ=1 or 1/2. Login. Study Materials. NCERT Solutions. NCERT Solutions For Class 12. NCERT Solutions For Class 12 Physics; NCERT Solutions For Class 12 Chemistry; NCERT Solutions For Class 12 Biology; NCERT Solutions For Class 12 Maths; ... ⇒ 2 tan 2 θ + 1 = 3 sin θ cos θ ∵ ... Web7 years ago. The easiest way is to see that cos 2φ = cos²φ - sin²φ = 2 cos²φ - 1 or 1 - 2sin²φ by the cosine double angle formula and the Pythagorean identity. Now substitute 2φ = θ into those last two equations and solve for sin θ/2 and cos θ/2.
Trigonometry Formulas & Identities (Complete List) - BYJUS
WebFor example, If the tangent of 45° is 1: tan (45°) = 1 Then the arctangent of 1 is 45°: arctan (1) = tan -1 (1) = 45° Arctangent table Arctan on calculator In order to calculate arctan (y) on a calculator: Press shift+tan buttons. Enter the angle. Press the = button. Tangent calculator See also Arctan function Tangent calculator Sine calculator Web1 − tan 2 45 ° 1 + tan 2 45 ° is equal to Options tan 90° 1 sin 45° sin 0° Advertisement Remove all ads Solution We have to find the value of the following 1 - tan 2 45 ° 1 + tan 2 … scl-ghs1r
Using the Pythagorean trig identity (video) Khan Academy
WebFree online tangent calculator. tan(x) calculator. RapidTables. Search Share. Home ... 45° π/4: 1: 60° π/3: 1.732050808 ... WebI am getting stuck on part A) You use sigma_1 = (sigma_3 * tan^2(45 + theta/2)) + (2*c * tan^2(45 + theta/2)) for both specimen 1 and 2. You then subtract specimen 2 equation from specimen 1. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. WebJun 24, 2024 · You probably mean either of these: Theme. Copy. % if x is in radians: tan (45+x/2).^2. % if x is in degrees: tand (45+x/2).^2. If you don't, please explain in a comment … scl-ghn2r-nnn