Trigonometry Answers

Determine the functions sin, cos and tan and their reciprocal and inverse functions.

Can anyone help with this trig HW?

In Exercises 39-46, find the unit vector that has the same direction as the unit vector v.

39. V= 6i

40. v = 5j

41. v=3i-4j

42. v= 8i-6j

43. v = 3i -2j

44. v = 4i-2j

45. v = i + j

46. v = i - j

Are the Vectors Equal?

1. Find ║u║ 

2. Find ║v║

3. Is u = v?

Explain

Q1. The points on u are (-1,2) and (4,6)

The points on v are (0,0) and (5,4)

Q2. The points on u are (-4,6) and (0,0)

The points on v are (-2,5) and (2,-1)

Q3. The points on u are (-1,1) and (5,1) 

The points on v are (-2,-1) and (4,-1)

Q4. The points on u are (-3,3)and (-3,-2) 

The points on v are (3,1) and (3,-4)

Mention explain mathematically and illustrate/show/draw/copy and paste a cultural artefact where reflection is used to develop the pattern or artistic effect.

2 cos a cot^2 a - 6 cos a - cot^2 a = -3 is it an identity or a conditional equation? if not an identity, solve for the unknown

(sinx+cosx)² -sin(2x)=1

For the expression below, write an equivalent algebraic expression that involves x only. Assume x is positive.

sec(sin^-1 1/x)

a tugboat is 36km due north of lighthouse C. Lighthouse B is directly east of lighthouse C. The lighthouses are 53km apart. Find the bearing og lighthouse B from the tugboat and the distance of lighthouse B from the tugboat.

If cosx+2cos(x+240°)=1

Determine the general equations

Cosx+2cos(x+240°)

Simplify the equation

cos^-1(sin^-1(tan^-1(x)))