3. tan a= P(a) in QII 6. cosa = P(a) in QIV 5

Q: Find the exact values of the following, if they exist. a. cos-1 V2 C. arccos (cos T) b. cos (cos-(-)…

A: (a) cos-122 = cos-112 Let y = cos-112cos y = 12cos y = cos π4y = π4 Hence cos-122 = π4

Q: Given that sin(0)= TT 3 and 2 <0<π what is the exact value of cos(20)?

A:

Q: Find the exact value of the given expression. sin (2 cos-¹()) 5

A: Given Problem:- Find the exact value of sin2cos-135

Q: Find the exact value, given that sin A =-45, with A in quadrant IV, tan B = 724 with B in quadrant…

A:

Q: If sin (A) = 3/13 with A in QII, find sec (2A). sec (2A) =

A:

Q: If cos 0= 5/13. Find the numerical value of sin 0.

A: Given: cosθ=513

Q: If sin A = 3 with A in QII, find the following. A COS

A: Pythagorean theorem: -A right-angled triangle is subject to the Pythagorean theorem formula. In a…

Q: Find sin(2x), cos(2x), and tan(2x) from the given information. sin(x) = 5/13, x in Quadrant I

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Q: 24 7.

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Q: 7 cos (0) = COS CO V85

A:

Q: Create a table of values of sin(1/x) for the following values of x: 2/pi, 2/3pi,2/5pi, 2/7pi, 2/9pi,…

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Q: sin(x) = 13/23 (in quadrant 1),find cos(2x)=

A:

Q: 13 5.

A: First use Pythagoras theorem to find the value of x. Then use the value of x so found to find sin…

Q: 5. Which of the following quantities is undefined? (a) sin-'(-}) (b) cos-(2) (c) csc-() (d) csc-'(2)

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Q: Suppose that cos 8 = 0.68. What is the value of sin(a)?

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Q: = -6, s in quadrant II

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Q: if 0 less than or equal to 0 less than or equal to 90 and sin (0) =a, then which of the following…

A: Solution

Q: Find the exact value of cos 2a given that sin a = x=% and 1 180° < a < 270°.

A:

Q: Find sin(a + B) given that cos(a) = for a in quadrant IV and tan(8) = with 3 in quadrant I. %3D

A: Given - cos(α)=817  , tan(β)=512α lies in IV quadrant. , β lies in I quadrant. To find sin(α+β).…

Q: Determine the following: a) sin^-1(√2/2) b) cos^-1(-√2/2) c) cos^-1(tan(π/4)) d)…

A: Solution of the problem as follows

Q: cos (α − β);

A:

Q: Let cos(22∘)≈0.9272. What is the the value of xx, in degrees, for sin(x)≈0.9272 ?  what does X = ?

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Q: Find cos 6 given that sin(20) = 5/13 and 0<0 <

A: Use properties of right triangle to get value of thetha

Q: / Find the value of the following: 1) cos (tan- 1) 2) sin (sin-) -1 3) tan (cos n) cos (sin-1) 4)

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Q: Find cos 5, given that sin 1 and 0 <0< 90°. 4

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Q: 9 Given that cos 2A = - such that 25' 180° < 2A < 270°, without using a calculat find the values of…

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Q: 12 what is the value of sec 13 (a+ If sin a 13 and cos a

A: Given,            sinα=513 and cosα=1213To find : secα+π4

Q: If sin A=1/√10 with A in QII find cos 2A.

A:

Q: If sin A= -4/5 with A in QIII, find cos A/2

A:

Q: Let cos A = 2/√5 with A in QI and find sin(2A)=

A: In Q1 , sin is positive  So,

Q: If cos A= 21/3 and A is between 90° and 180°, find   sin A/2

A: Given : If cos A= 21/3 and A is between 90° and 180°,    Since, 90° &lt; A &lt; 180°…

Q: Given that cos x = 4/5 and x lies in QIV, determine the exact value of sin x/2

A: Use the formula cos 2θ=1-2sin2θ and substitute x2 for θ and then 45 for cos x.

Q: If cos 0 4' T soS 27, find tan 0 and sin 20 without using a calculator.

A: Given:cosθ=34 ; π≤θ≤2πNow, since sin2θ+cos2θ=1,sin2θ=1-cos2θ…

Q: 1. State the exact value of the following a) tan 1 (v3) =1Response b) arccos(cos()) =2Response c)…

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Q: Find sin 2x, cos 2x, and tan 2x if tanx= and x terminates in quadrant II. 12

A: In second quadrant sin is positive and cos is negative

Q: Find the exact value of sin( – B), given that sin a = - and cos B = , with a in quadrant III and Bin…

A: Given,   sin α=-45, cos β=1213

Q: Find the exact value for the expression under the given conditions. 5 cos (a+ B), sin a= for a in…

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Q: 0° < 0 < 90° and sin0= 7/25, find cos 0/2.

A: Given query is to find indicated angle. Given sin θ=725, 0&lt;θ&lt;90 Use the following identities:…

Q: 3 , x in quadrant I, then find (without finding x) 5 If cos x = - sin(2x) cos(2x) = tan(2x)

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Q: If sin A = 65 with 180° < AS 270°, find cos 2A and cos 65 Cos 2A = COS 2

A: To find the value of the following,

Q: what is the exact value of the following  y= sin^-1(theta3/2) and y= accros (-theta2/2)

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Q: If cos(0) 1 and 0 is in the 4th quadrant, find sin(0) %D - sin(0) =

A: Given that cosθ= 1/6 And θ us in 4th quadrant Find sinθ = ?

Q: Find the exact value of the expressions cos(a+B), sin (a+B) and tan (a+B) under the following…

A:

Q: If sin A =2/3 with A in the interval 0° &lt;= A &lt;= 90°, find       cos A/2

A: Given, sin A=23, 0°≤A≤90°

Q: If sin B with B in QIII, find the following. 3 B cos 2

A: We have to find the angle

Q: If sin a= 7√2/10 and π/2 (less than) a (less than) π, find the exact value of tan 2a

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Q: Find the exact value of COS 2x given that sin x III. 3 and is in quadrant

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Q: Find the exact value of the following under the given conditions:a. cos(α + β)  b. sin(α + β)  c.…

A: It is given that the angle α lies in II quadrant. In II quadrant, all the trigonometric ratios are…

Q: 8. Given that cos 0 = and 90° <0 < 180°, find each of the following. (e) tan

A: