4 Let P = a i j be a 3 × 3 matrix and let Q = b i j where b i j = 2 i j a i j for 1 ≤ i, j ≤ If the determinant of P is 2, then the determinant of the matrix Q is 5 If the sum of n terms of an AP is given by S n = n 2 n, then the common difference of the AP is 6 sinx = √3 2 Trig table gives as solution arc x = π 3, or x = 60∘ Unit circle gives another arc x that has the same sin value (sqrt3/2)A)1/2 b) √3/2 c) √2/2 d) √ 3 If the leg of a triangle is 7 cm long, then its hypotenuse is _____ cm a 7√2 b 49√2 c 7 d 7√7 21
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Sin^-1(2/3) value-Calculate sin(32)° Determine quadrant Since our angle is between 0 and 90 degrees, it is located in Quadrant I In the first quadrant, the values for sin, cos and tan are positive3/√12 = 3/(√4*3) = 3/2(√3) = (√3 )/2 so question simplifies to sin(x30°)= (√3) /2= sin60° we know sin 60°= (√3) /2 If you are a kid who doesn't know
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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 ·CBSE CBSE (Arts) Class 12 Question Papers 17 Textbook Solutions Important Solutions 24 Question Bank Solutions Concept Notes & Videos 531 Time Tables 18 Syllabus Advertisement Remove all adsThe function sin^1 x has range π/2
The value of expression (1/cos 290°) (1/√3 sin 250°) is 1) √3/4 2) 4/√3 3) 2/√3 4) √3/2 Answer(2) 4/√3 Solution We know that, cos 290° = cos(360° – 70°) = cos 70° sin 250° = sin (180° 70°) = sin 70° Thus, the given expression will beThe value of sin 180 (sin pi) can be interpreted in terms of different angles like 0°, 90° and 270° Assume that the unit circle in the Cartesian plane is subdivided into four quadrants And we know that the value of sin 180 degrees in the Cartesian plane takes place in the second quadrantGiven 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 quadrant
Calculate sin(25)° Determine quadrant Since our angle is between 0 and 90 degrees, it is located in Quadrant I In the first quadrant, the values for sin, cos and tan are positiveDetermine angle type 74 is an acute angle since it is less than 90° sin (74) =As we know that sin (theta) is always less than and equal to 1, and sin (90) is equal to 1, which is the highest value Now looking to the question, value of theta and fi will be 90, as 11=2, and 1 can only be possible when both angles are 90 Now theta=fi=90, hence theta fi=180, and cos (180) = 1
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And, if A is an angle of third quadrant, sin A = { (√3) / 2} and cos A = ( 1 / 2) So, there can be four possible casesClick here👆to get an answer to your question ️ The equation sin^1x cos^1x = cos^1 (√(3)2) has Join / Login > 12th > Maths > Inverse Trigonometric Functions > Inverse Trigonometric Functions Find the value of sin Let us find the exact value of Sin 45 using an isosceles triangle An isosceles triangle with perpendicular side =1 cm and hypotenuse = √2 will give you the value of Sin 45 degree Image Will be uploaded soon As we know, Sin 45° = Perpendicular/ hypotenuse Sin 45 ° = AC/ABC Sin 45° = 1/√2 So, the exact value of Sin 45 degree is 1/√2
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The Value Of Tan 70 Tan Tan 50 Is The Value Of Tan Minus 945 Is The value of tan1 (1 / 2) tan1 (1 / 3) tan1 (7 / 8) = The Value Of The Common Difference Of An Ap Which Makes T1 T2 T7 Least Given That T7 Equals 9 Is The Value Of The Expression 1 Sin 2 Y 1 Cos Y The Value Of The Expression Sin 6 Theta Cos 6 Theta 3 Sin 2 Theta Cos 2Click here👆to get an answer to your question ️ Find the following sin pi2 sin^1 (√(3)2) Join / Login > 11th > Maths > Trigonometric Functions > Graphs of Trigonometric Functions The value of the expression (sin 8 0The function sin^1 x has range π/2
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Click here👆to get an answer to your question ️ Find the principal value of sin^1 ( √(3)2) 2sec^1 (2tan pi6 )First solve the inside bracket value 2 c o s − 1 2 3 The range of the principal value of c o s − 1 x is 0, π Let c o s − 1 2 3 = x c o s x = 2 3 x = 6 π where x ∈ 0, π 2 c o s − 1 2 3 = 2 6 π = 3 π Then the expression reduces to t a n − 1 (2 s i n 3 π ) Now we are going to reduce the term 2 s i n 3 π We know that s i n 3The ratio of Sin 60 = Perpendicular/ Hypotenuse The method to calculate the Sin 60 degree exact value is to divide √3 by √4 or √3/√4 With this, we got Sin 60 value= √3 /2 So the exact value of Sin 60 degree is √3/2 In the same manner, we can calculate the value of other trigonometry ratios with different degrees
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For memorising cos 0°, cos 30°, cos 45°, cos 60° and cos 90° Cos is the opposite of sin We should learn it like cos 0° = sin 90° = 1 cos 30° = sin 60° = √3/2 cos 45° = sin 45° = 1/√2 cos 60° = sin 30° = 1/2 cos 90° = sin 0° = 0 So, for cos, it will be likeSine calculator online sin(x) calculator This website uses cookies to improve your experience, analyze traffic and display adsWhat is the exact value of sin 45 a12 b 3 2 c 2 2 d 3 19 What is the exact value of sin 450?
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