Correct answers 3 question If the value of cos theta =√3/2then find the minimum positive value For cosine, you would use the same process Just remember the cosine of an angle is the side adjacent to the angle divided by the hypotenuse of the triangle In the diagram, the adjacent side is a and the hypotenuse is c, so costheta=a/c To find theta, you use the arccos function, which has the same relationship to cosine as arcsin has to sineGiven, cos theta = 21/29 We know that sin^2 theta=1cos^2 theta Hence (sin theta)^2 = 1(21/29)^2 → sin theta = /29 or /29 Depending on the quadrant in which theta lies we will select the sign, ie if theta lies in first or second quad then sin theta = /29 and if theta lies in third or fourth quad then sin theta = /29 Hope you got it
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If cos theta=(sqrt(3))/(2) so sin 3 theta find the value of
If cos theta=(sqrt(3))/(2) so sin 3 theta find the value of-Find the value of csc 315° Solution csc 315° = sec (270 45)° = sec 45°;Find the value of cos 1° cos 2° cos 3° cos 177° cos 178° cos 179° Q14 Two roads XY and YZ of 15 metres and metres length respectively are perpendicular to each other
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Cos θ = 0 If we started from A and moves in anticlockwise direction then at the points A, B, A', B' and A, the arc length travelled are 0, π 2, π, 3 π 2, and 2π Therefore, from the above unit circle it is clear that cos θ = O M O P Now, cos θ = 0 ⇒ O M O P = 0Hi cos (θ) = 1/3 Then sin (θ)= √2/3 Note 1^2 (√2)^2 = 3Is done on EduRev Study Group by Class 10 Students The Questions and Answers of If 2cos 3theta =under root 3 ,then find the value of theta ?
Given cos θ = \(\frac{\sqrt{3}}2{}\) Since, θ is in IIIrd Quadrant So, sin and cos will be negative but tan will be positive We know that, cos 2 θ sin 2 θ = 1 Putting the values, we get Since, θ in IIIrd quadrant and sinθ is negative in IIIrd quadrant5 tan theta = 4Tan theta = 4/5We know that tan theta = p/b so, here 4 is perpendicular and 5 is baseH=√square of 5 square of 4H= √2516H=√41atq = 5 sin theta 3 cos theta / 5 sin theta 2 cos theta =5 × 4/√41 3 × 5/41 / 5× 4/√41 2× 5/√41/√41 15/√41 / /√41 10/√415/√41 / 30/√415 /√41 × √41 /30So , √41 will be cutted nowTherefore 5/30 remainsAre solved by group of students and teacher of Class 10, which is also the largest student community of Class 10
This problem has been solved!Find the points on the curve where the tangent is horizontal or vertical If you have a graphing device, graph the curve to check your workx = cos 3(theta),3 Answers3 θ Here you have tan θ = 63 1 Now, draw a triangle with the sides as 63 and 1 Now you should be able to find sin θ and adjust the signs θ = 63 = 63 1 = y − o r d i n a t e x − o r d i n a t e = − 63 − 1;
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Question if cos theta = 1/3, theta is in Q IV, find the exact value of sin (thetapie/3) Found 2 solutions by ewatrrr, stanbon Answer by ewatrrr () ( Show Source ) You can put this solution on YOUR website!Find an acute angle theta when cos thetasin theta /cos theta sin theta =1√3/1√3 Ask questions, doubts, problems and we will help youSince we know, csc (270° θ) = sec θ = √2 2 Find the value of cos 330° Solution cos 330° = cos (270 60)° = sin 60°;
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This discussion on If 2cos 3theta =under root 3 ,then find the value of theta ? Free Online Scientific Notation Calculator Solve advanced problems in Physics, Mathematics and Engineering Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex Numbers, Calculation History1) π/6 2) 2π/3 3) 5π/6 4) π Answer (3) 5π/6 Solution Given, 2sin 2 θ √3 cos θ 1 = 0 2(1 – cos 2 θ) √3 cos θ 1 = 0 2 – 2 cos 2 θ √3 cos θ 1 = 0 2 cos 2 θ – √3 cos θ – 3 = 0 This is a quadratic equation in cos θ and by quadratic formula,
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Get an answer for 'If 3 cosθ = 5 sinθ, then the value of (5 sinθ 2sec^3θ 2 cosθ)/(5sinθ 2sec^3θ 2cosθ) ' and find homework help for other Math questions at eNotesAre solved by group of students and teacher of Class 10, which is also the largest student community of Class 10So ∠B = sin(1)√3/2 = 60° sinBCD = BD/CD ⇒ 1/√3 So ∠BCD = sin (1)1/√3 ⇒ 30° So when sine of an angle is √3/2, it is a right triangle whose hypotenuse is 2 units, opposite side is √3 units and adjacent side is 1 unit, Taking this into consideration you can find out ratios of cosθ, tanθ and cotθ when sinθ is √3/2 cosθ = 1/2
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If sin theta = √3/2 as shown above, then theta = 60° as can be obtained from a trigonometric table So, to calculate tan (90theta)° or to find tan 90°60° or tan 30°, it is available from the trigonometric table and it is (√3)/3 56 views ·Let cos(theta) = x, sin(theta) =x sqrt(3) then 1=sin^2(theta)sin^2(theta)= 4x^2 Therefore cos(theta)=x=1/2 (and sin(theta)=sqrt(3)/2)or cos(theta) = x=1/2 (and sin(theta)=sqrt(3)/2)Answer by solver() (Show Source) You can put this solution on YOUR website!
Ex 2 1 2 Find Principal Value Of Cos 1 Root 3 2 Class 12
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