Find cos2θ if sinθ 35
WebSOLUTION: Find the remaining trigonometric functions of θ based on the given information. cos θ = − 35/37 and θ terminates in QII ... cos θ = − 35/37 and θ terminates in QII Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website! WebFind cos2θ if sinθ=178. cos2θ= Question: Find cos2θ if sinθ=178. cos2θ= Show transcribed image text. Expert Answer. Who are the experts? Experts are tested by Chegg as specialists in their subject area. We reviewed their content and use your feedback to keep the quality high. 1st step. All steps. Final answer. Step 1/2.
Find cos2θ if sinθ 35
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WebDec 9, 2024 · Trigonometric Identities (1) Conditional trigonometrical identities We have certain trigonometric identities. Like sin2 θ + cos2 θ = 1 and 1 + tan2 θ = sec2 θ etc. Such identities are identities in the sense … WebTrigonometry. Find the Other Trig Values in Quadrant II cos (theta)=-7/25. cos (θ) = − 7 25 cos ( θ) = - 7 25. Use the definition of cosine to find the known sides of the unit circle right triangle. The quadrant determines the sign on each of the values. cos(θ) = adjacent hypotenuse cos ( θ) = adjacent hypotenuse.
WebAug 4, 2024 · θ can be in the first quadrant 0 ≤ θ ≤ 90 or the fourth quadrant 270 ≤ θ ≤ 360. If θ is in the first quadrant, then. sinθ = 5 13. cosθ = 12 13. tanθ = 5 12. Therefore, sin2θ = 2sinθcosθ = 2 × 5 13 × 12 13 = 120 169. cos2θ = cos2θ − sin2θ = (12 13)2 − ( 5 13)2 = 144 169 − 25 169 = 119 169. WebFeb 11, 2024 · We need the double angle formulas sin (2θ) = 2 sinθ cosθ cos (2θ) = cos 2 θ - sin 2 θ So now we need to know cosθ and sinθ Draw a triangle, and use the fact that tanθ = (opposite side) / (adjacent side). So the triangle this angle describes has height 7 …
WebFree math problem solver answers your trigonometry homework questions with step-by-step explanations. WebFeb 10, 2024 · You should have values of sinθ = 7/25 and cosθ = 24/25 Plugging those into the formula of sin(2θ) = 2 sinθ cosθ = 2 * (7/25) * (24/25) = 336/625 Plugging in the …
WebJun 18, 2024 · sin2θ + cos2θ = 1. sin2θ + (3/5)2 = 1. sin2θ = 1 - (3/5)2. sin2θ = 1 - 9/25. sin2θ = 16/25. sin θ = ±√[ 16/25 ] sin θ = ± 4 / 5. Since θ is in Quadrant I, sin θ is …
WebJun 30, 2024 · and the property $\sin^2θ + \cos^2θ = 1$ and trying to solve for sinθ but i'm running around in circles. Also tried using the special triangles but the values i'm getting are way bigger than 1 ... edited Jun 30, 2024 at 17:05. Jay M. asked Jun 30, 2024 at 16:35. Jay M Jay M. 267 1 1 silver badge 7 7 bronze badges $\endgroup$ 4. 1 ... extremity\\u0027s 02WebA: Solution ) sin (thetha) = -5/13 and cos (thetha) <0 Sin thetha is ( - ) and cos (thetha) <0 that…. Q: Find the exact value of cos 70° cos 40° + sin 70° sin 40°. A: Click to see the … extremity strength out of 5WebSolve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. document wont print from one driveWebMay 18, 2024 · Use identities to find values of sin 2θ and cos 2θ for sin θ = 2/5, cos θ < 0. Log in Sign up. Find A Tutor . Search For Tutors. Request A Tutor. Online Tutoring. How It Works . For Students. FAQ. What Customers Say. Resources . Ask An Expert. ... sinθ=2/5. cos 2 θ=1-sin 2 θ gives cos 2 θ=1-4/25=21/25. extremity\\u0027s 06WebTrigonometry. Find the Other Trig Values in Quadrant I sin (x)=12/37. sin(x) = 12 37 sin ( x) = 12 37. Use the definition of sine to find the known sides of the unit circle right triangle. … extremity\u0027s 04WebNov 17, 2015 · Find sin x. #sin^2 x = 1 - cos^2 x = 1 - 25/169 = 144/169#--> #sin x = +- 12/13#. Since x is in Quadrant IV, then sin x is negative. #sin x = - 12/13#. #sin 2x = 2sin … document workbench infosysWebMath. Precalculus. Precalculus questions and answers. (1 point) Find cos 2θ if sin θ = cos2θ二 12 37. extremity\\u0027s 05