20. If cos 0 = 0.2, then cos(0 + 1) = ? A. 0.2 B. -0.8 C. -0.2 D. 0.8

Q: 13. If 180° ≤ 0 ≤ 270° and cos 0 Cos os 블. 8 10' find

A: If 180°≤θ≤270° and cos θ=-810, then to find cos θ2.

Q: 19 If x= cos 30 and y = sin 30 , then O a.-3 cot 30 O b. 3 tan 30 O C.-3 tan 30 o d.- cot 30

A: We have to find the differentiation like in the parametric form of differentiation . We have the…

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: 13. Suppose sin n° = 15: Find cos nº and tan n° without using a table or calculator. 13

A: Given: sin n°=513. To find: cos n° and tan n°. Solution: We have given sin n°=513. We know that,…

Q: Suppose that cos e = 5/13 and 37/2 < e < 2n. (a) Compute sin 8. (b) Compute cos 20 Hint: cos 20 =…

A:

Q: 4 cos 3

A:

Q: Which of the following is equivalent to cos (60° + 0) + sin(30° + 0)? cos 0 + V3 sin 0 cos 0 O…

A: This question is based on Trignometric Formulas.

Q: 57 then 3 If 0 sin(0) = cos(0) =

A:

Q: A = %3D (b) If cos (2a) – sin (2æ) = cos( %3D B =

A:

Q: B O tan-1 cos 13 13 O cos 12

A: In this question we will use basic of geometry i.e use of trigonometric ratios. We will simply apply…

Q: 2n If A= sin 7 2n + cos 7 8T + sin- + sin and B= cos 7 then VA? + B? is equal to + cos- 7 7 7 (A) 1…

A: Given: A=sin2π7+sin4π7+sin8π7B=cos2π7+cos4π7+cos8π7

Q: 3 3. If sin A = 4 cos A and tan A.

A:

Q: snip

A:

Q: S cos? rdr .2 CoS

A: We will find the integral as following.

Q: 1. Which is equal to cos ? cos O sin * O sin O Cos 품 27 COS

A: topic - trigonometric ratios

Q: 5. If 90° < 0 < 180° and cos 0 = — 1, find cos 20. ㅇ 곯 ○ 16 25 0-곯 ㅇ

A: Given that,

Q: [(6+3:)cos(1+ 42)dz

A: Given: ∫6+3zcos1+4zdz

Q: 3. In (cos)

A:

Q: 1. If 0° < 0 < 90° and cos 0 = , find cos

A: Follow the procedure given below.

Q: 5 In right triangle DEF, if mLF = 90 and cos E = sin D is equal to

A:

Q: Cos (2 on36)

A: Since you have asked multiple questions in a single request we would be answering only the first…

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

A:

Q: 5. 3 If tan B = - with * <B < 2n , find cos (2ß). %3D

A: It is known that in the first quadrant all trigonometric ratios are positive, in the second quadrant…

Q: 34. If cos e Find tan O. 2. N/3

A:

Q: 7) 300° Pos Neg Sin Cos

A:

Q: snip

A: cos1°+cos2°+cos3°+---+cos358°+cos359°

Q: Given that cos ß = V3 find the exact 2 value of cos 2B: Cos 23 3 Cos 23 %D 1 cos 2B 1 cos 2B %3D II

A: Trigonometry Question

Q: 27 cos 0 de O 1 6.

A: Using definite integral.

Q: | 2 cos®e de= COS 70 .a 256 35 128 70 T cO 128 35 256

A:

Q: 57 then 3 If e sin(0) = cos(0) = Give exact values. No decimals allowed!

A:

Q: Evaluate e cos(2x) dar.

A:

Q: Which of the following is equivalent to cos (60° + 0 + sin(30° + 0)? cos 8 +V3 stn 0 cos e Option 1…

A:

Q: 16. If sin O - cos O = 1 / 3, determine the value of sin O cos O. A. 5 / 4 B. 5 / 9 С.4/9 D. 4 / 5

A: Since you have posted multiple questions i can do first question as per our company guidelines…

Q: -5 If 0 then 3 sin(0) cos(0) = %3D Give exact values. No decimals allowed!

A: Find the values

Q: Sam) sin |cos dx O32 coss 35 -5cos? + C 32 cos 32 cos + C 4 7 5 32 cos 35 5sin? +2+ C O 32 7( x), 32…

A:

Q: 4. If cos 0 = and tan 0 >0, then sin 0 = 13 O A 12 13 о в 5 12 С. 12 13 O D. 5 12

A:

Q: D. If 180° <0 < 270° and cos 0=-, find cos 15

A: We have been given the range for the angle from 180 degrees to 270 degrees.

Q: -27 If 0 = , then 3. sin(0) = cos(0) = COS Give exact values. No decimals allowed!

A: Sin(-2π/3) =-√3/2  Cos(-2π/3) = -1/2

Q: Qshow that: Cos 40 8 Cos"e +8 Cos e+1

A:

Q: 10. If 0° 0 0° ≤ 0 ≤ 3 ne = , find cos(20) 5 ≤ 90° and sine

A:

Q: |(6+32)cos(1+4=)dz

A: The integration by parts formula is used to find the integral of the product of two functions and…

Q: 2/2 Suppose cos(a): , where sin(a)<0 and cos(B) where <B<n, what is the exact value of cos(a +B)?…

A: Here we have to choose the corect option.

Q: 29. If sin (a) 3 5 -34 and cos<0, then tan = = 3 (b) (c) (d) 4 3 六

A:

Q: – 57 then - If 0 : sin(0) = cos(0) = COS %3D

A: Given : θ = -5π/6 Then, sinθ = sin(-5π/6) = sin(-5×180/6) sin(-150) = -sin(150)         [∴ sin(-θ)=…

Q: 7 6. If cos e = 18 37 SOs27, determine the exact value of cos 2.

A: Given: cosθ=718, 3π2≤θ≤2π.

Q: 5 If sin u = 13 12 cosu = 13 3 and cos W = 5 W = --, find the exact value of each of the following:…

A:

Q: If csc² A 5 what is the value of 2' 1- cos? A?

A:

Q: 11T If 0 then sin(0) : %D cos(0) = Give exact values. No decimals allowed!

A: here we know that  sin2π - x = -sin(x) cos2π - x = cos(x)

Q: 1 Cos(2) COS is equal 2]

A:

Q: Question in the file attached

A: using half -angle formula with proper sign attached.( taking into account the quadrant )

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.