2. If 0° < 0 < 90° and cos 0 find sin 20. 3/55 32 V55 64 V55 32 3/55 64

Q: 4 e 3 Find the exact value of sin 20. 25 6 25 25 25

A: Given: sin 2θ=2 sin θ cos θ         =2 4535         =2425

Q: If cos 0 2. and 0 is in Quadrant III, then sin 0 is equivalent to 4 (1) -7 (2) V7 (3) - 4 4 (4) 등 4

A:

Q: 7. If 0° < 0 < 90° and sin 0 =, find cos 20.

A: To find: The value of cos2θ. Given: The value is sin θ=35 and 0°≤θ≤90°. Formula used: Trigonometric…

Q: 5. If 270° <0 < 360° and cos 0 = , find sin . 3. 3

A:

Q: If 0°<θ<90° and sin⁡θ=12/13, find cos⁡θ using trigonometric identities. 12/13 5/13 12/5 5/12

A:

Q: 1) Find (cos+ i sin). 12 12

A: to findz=cos5π12+isin5π12

Q: 12 If sin 0 = 0<0 37' <0<5, find the exact value of each of the following. 2 (a) sin (20) (b) cos…

A: We need to find trigonometric ratios

Q: 6. Given that sin e = 9/10, find the cos 0. %3D

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: If sin = O a) 1/ Ob) _42 4√2 Oc) 4√2 Od) - O e) _4V/2 9 - 4√2 and is in quadrant IV, find sin (20).…

A: sinθ = -1/3  and θ is in 4th quadrant it means cosθ also negrative    sin2θ = 2sinθ*cosθ    sin2θ=…

Q: If tan 0 = 5 6 1 (a) sin (20) 31 2 πεθα· find the exact value of each of the following. 3 (b) cos…

A: Given that tan θ=56Since, we know that  tan θ=PerpendicularBase⇒  Perpendicular=5 and Base=6By…

Q: 9. Given that cos 0 =, what is sin 20, if 0 <0 < /? 12 a. 16 25 25 24 25 25 b. d.

A: Given query is to find the value indicated trigonometric function.

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

A:

Q: 3) If Sin A= 12/13 Then without using calculator Find the value of Cos 2A O 25/169 O (-119)/169…

A:

Q: 5. If 90° < 0 < 180° and cos 0 ·유, find sin 20. 35 37 - 420 1369 840 1369 420 1369 840 1369

A:

Q: 3 Given that the cos(0)= and is in the first quadrant, what is the exact value of sin(20) ?

A: Given that: cos(θ)=35  and θ is in first qudrantWe know that sin2θ+cos2θ=1substituting  cos(θ)=35…

Q: 5. If sin e and 360 < e< 450°, find cos %3D

A:

Q: If sin A= 12/13 with A in Q2 find cos A/2

A:

Q: Evaluate the expression under the given conditions. 2/5 8 O in Quadrant I, cos o = - 17' sin(0 + ø);…

A: Given query is to find indicated angle.

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

A:

Q: 2) If Sin A= 3/5 Then Find the value of Cos 2A O 24/25 O ((24)/25 7/25 O (-7)/25

A: Given: sinA=35cos2A=?

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: **#1.) In right triangle MNO, MN = 10, MO = 15, and m2N = 90°. If sin0 = find the value of cos0.

A:

Q: If cos(0) 7. and 0 is in the 4th quadrant, find sin(0) 8. sin(A)

A: Since, cos θ=78and θ is in the fourth quadrant.Our Aim is to find sin θ=?

Q: 5. Without a calculator, find all the exact values of 3 cos(46) – 2 sin(86) sin(46) = 0 17T <B< 0.…

A:

Q: 7 and 270° < 0 < 360° 25 sin 0 = - Find cos 2

A: Given: sinθ = -725 ,   270° &lt; θ &lt; 360° To find: Value of cos θ2.

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: 8 Given cos 0 = 17 find sin 0. sin 0 = [?]

A:

Q: 17 and 180° <0 <270°. 8. Suppose that sec 0 = Find the exact values of sin and tan 2

A:

Q: (b) If cos (20) = 3/5 and 0 <0 ST/4, find the values of i. sin (20) %3D ii. cos (0) iii. sin (0)

A: If the angle belongs to  0≤θ≤π4, then 2θ belongs to0≤2θ≤π2          It means 2θ is in quadrant I…

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

A:

Q: Let sin 0 = 12/13, and cos 0 = 5/13, and find the indicated value. %3! %! sec 0 = %3D

A: Given ,  sin θ = 12/13  cos θ = 5/13 We have to find sec θ Since ,

Q: If Cos 0 and 0° < 0 < 90° what is sin 0? 13

A: we are given that cosθ =513 and we asking to find sinθ.  we will solve with the help of Pythagoras…

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: 45 [6] cos 2B and sin 2B given sec B & sin B> 0. In what quadrant does 2B terminate? %3D

A:

Q: 1 Assume that cos(0) and 0 is in the first quadrant. Compute the following using the double 5 angle…

A:

Q: 15 17' If sin 0=- where sin 20= ? OA. 30 289 cos 20= ? OA. 161 289 K <0<x, find the exact values of…

A:

Q: Find the exact value, given that sin A = - 4/5, with A in quadrant IV, tan B = 7/24 with B in…

A:

Q: 3. If 0° <0 < 90° and cos 0 =, find sin 20. O 3V55 64 O V55 32 O 3V55 32 V55

A:

Q: 2. If 90° < 0< 180° and cos e = - 5, find sin 20. 37 420 1369 840 1369 840 1369 420 1369

A:

Q: 3 If cos 0 = - 4 and 0 is in Quadrant III, then sin 0 is equivalent to 2. (1) - (3) – 5 4 4 (2) *…

A: in 3rd quadrant sin is negative : Given :

Q: 20 Given: csc (8) = find sin (0)

A: We know that; cosec x = 1/(sinx) So, according to the given question; sin(Θ) = 1/(cosec(Θ)) = 9/20.…

Q: 11 ,0<a< 61 3. If sin(a) Find sin()

A: If sin(alpha)= 11/61 then find sin(alpha/2)

Q: 9. Given sin 0 =i and cos 0 < 0, evaluate the following. a. cos 0 b. cot 0 c. cos(20)

A: Consider the following value: sinθ=16 Consider the following trigonometric identity:…

Q: 4. If tan 0 =E, x<0<, find the exact value of each of the following. 2' (a) sin (20) (b) cos (20)…

A: As we know that sin2A=2tanA1+tan2Acos2A=1-tan2A1+tan2A

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

A:

Q: If 0° <0 < 90° and sin 6= 12 find 13 cos 0 using trigonometric identities. %3D 12 12 13

A:

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

A:

Q: 14. Find sin 0, given that cos0=Y,and tan 0 <0. V5 V59 a.- 8 5 C.- 8 d

A:

Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.