6. Suppose cos m = n and sin m = k. Which ONE of the following must be true?

Q: 6. Which of the following expressions are equivalent to the expression below? 0 1 O -1 cotx + tanx 1…

A: let B=cotx+tanxwe know, tanx=sinxcosx  and  cotx=cosxsinx

Q: Let , = cos-+i sin and z, = cos-+isin 6 Express in the form : =a+bi

A:

Q: Which of the following are identities? 1. sin (½ + x) = sin -sin x II. sin (x - 2) = sinx - sin 그플…

A: The given expressions are,I. II. III. IV. The aim is to find the true identities.

Q: What is 1 + (COS ™n) when n = 4? 01 O -1 O2

A:

Q: Find cos(A) and cos(B). Select all that apply. 20 A В 25 3 cos(B) 4 cos(B) 3 cos(A) 4 4 cos(A) ||

A: Given: ∠C =  90° then the △ACB is Right angled triangle

Q: 2. Find the identical expression for the following. cos x(tan² x + +1)

A:

Q: Which of the following expressions is exactly 1? T 3 7) T cos () cot ( sec ( 품) tan (4) - O sin (품)…

A:

Q: cos (92) – cos(3z) sin(9z) – sin(3z) Simplify to an expression involving a single trigonometric…

A:

Q: Simplify the expression. Do not evaluate. cos?(18°) – sin2(18°)

A: cos2A-sin2A=cos 2A

Q: 3. Find the equovalent of cOs (A+B) answer should contain cosA COS B Sin A an d tan B

A: Value of Sinx/Cosx is tanx

Q: Given z₁ = 8(cos 45° + i sin 45°) and z2 = 4(cos 210° + i sin 210°), what is 2122?

A: We are given that  z1 = 8(cos45°+ i sin45°)  z2 = 4(cos210°+i sin210°) We have to find z1*z2 We will…

Q: Evaluate. cos 2a if 2 cos 3α = cos a

A: ​cos(2α)=−1,43​​Explanation:Step 1:​Given: 2cos(3α)=cosαTo find: cos(2α)​Step 2:​2cos(3α)=cosαUsing…

Q: 1 sin4 0 = 3/7-1/10 20 + — + co cos 82 8 cos 40

A: We need to prove the given identity.

Q: c. If cos 0 + 4 =2, find 0.

A:

Q: Which of the following is true? 10 A 8. B А: sin(A) = 6 10

A: Given query is to find the correct option for right angle triangle.

Q: 11. Complete the sentence below. sin 20+ + cos 0 = %3D

A: