Question 15 Find the exact value of cos(x- y) if: 15 and x is in the...

Question

Question

Answer 1

Answer #1

15 Cos (x-y) - Cosx Cosy + sinx sing /مد 3 aſs 3 Cos x is un quadrant sin ²x 1- cos²x 1- 5 9 4 9 1) - sinn Who 5 - 22 Cosy -

Answer 2

Similar Homework Help Questions

If sin(x) = 4/5 and cos(y) = 5/13 with both x and y terminating in quadrant 1 find the exact value of cos(x-y) I know that the denominator will be 65

If sin(x) = 4/5 and cos(y) = 5/13 with both x and y terminating in quadrant 1 find the exact value of cos(x-y) I know that the denominator will be 65
show work 9. tan 37 10. sec 4 11. Find sin(x + y) and cos(x +...

show work 9. tan 37 10. sec 4 11. Find sin(x + y) and cos(x + y) if cosx = - cosy = -— x is in quadrant II and y is in quadrant III. [10] 12. Find the exact value of sin 2x and cos 2x if sin x = and cos x = - [6] 5 13. Simplify tan (x + 3) to a form involving sinx, cosx, and/or tanx. [6]
QUESTION 12 Use a double-angle or half-angle identity to find the exact value of: cos(0) =...

QUESTION 12 Use a double-angle or half-angle identity to find the exact value of: cos(0) = and 270° <=< 360°, find sin 5 OAV10 10 B. 10 C. None of these OD 10 3 17 OE 4 QUESTION 13 Use a double-angle or half-angle identity to find the exact value of: 3 sin(0)= and 0° <o<90° , find tan 5 - šar 10 OA. 3 B.V10 Octs OD. -V10 E V30 QUESTION 11 Use a double-angle or half-angle identity to...

1-17 u ule exact value of the expression 1) cos? 30+ cos? 60 2) cot 45-tan...

1-17 u ule exact value of the expression 1) cos? 30+ cos? 60 2) cot 45-tan 45 5-6 Use the given information to find the exact value 3) sin? 53 + cos2 53 4) cot 20 -tan 20 5) sin = , where is in quadrant 1. Find tan 6) tan 0 = - , where is in quadrant 4. Find sec 7-12 Verify the identity 7) tan sin cos 0 = sin? 8) tane = sine 9) tancos? +...
41&43 In Problems 41-46, use the given information and appropriate identities to find the exact value...

41&43 In Problems 41-46, use the given information and appropriate identities to find the exact value of the indicated expression. 41. Find sin(x + y) if sin x = 1/3, cos y = -3/4, x is in quadrant II, and y is in quadrant III. 42. Find sin(x - y) if sin x = -2/5, sin y = 2/3, x is in quadrant IV, and y is in quadrant I. 43. Find cos(x - y) if tan x = -1/4,...
Determine whether the equation is exact. If it is, then solve it. (cos x cos y...

Determine whether the equation is exact. If it is, then solve it. (cos x cos y - 10x)dx - (sin x sin y + 2y)dy = 0 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. = C, where is an arbitrary constant. O A. The equation is exact and an implicit solution in the form F(x,y) = C is (Type an expression using x and y as the variables.) OB. The...

#2, #3, #4. NOT #1. thank you! 1. Find the quadrant and reference angle associated with...

#2, #3, #4. NOT #1. thank you! 1. Find the quadrant and reference angle associated with 2. For the given functions find without using a calculator: a. Quadrant in which the angle is located b. Reference angle c. The exact value of the trigonometric function a). sin(225) the rotation, sketch the diagram and find the associated point (x, y) on the unit circle. 11T 6 b). cos 3. Solve the oblique triangle with the given characteristics 4. a. Convert the...
Exact Differential Equations. Let y(x) be the solution of the following initial value problem: (cos z...

Exact Differential Equations. Let y(x) be the solution of the following initial value problem: (cos z ln(2y = 8) + 2) + (x+4)=0, x(1) -- What is the value of y(+/2)? (a) 37 + 1. (b) 1/7- 2. (c) /3+ V. (d) 4+1/. (e) None.
5 4 If tan = and coto= find the exact value of sin(0-0). 9 Note: Be...

5 4 If tan = and coto= find the exact value of sin(0-0). 9 Note: Be sure to enter EXACT values 1 You do not need to simplify any radicals. sin(0-0)- 2 If cosa = 0.369 and cos B 0.195 with both angles' terminal rays in Quadrant-l, find the values of (a) sin(a +B) = (b) sin(B-a) = Your answers should be accurate to 4 decimal places. Give exact answers 2 sin(a) = and cos(B) 4 5 Both angles terminate...

Find the exact value of cos 75° using the half-angle identity. Choose the exact value of...

Find the exact value of cos 75° using the half-angle identity. Choose the exact value of cos 75° ОА. 12-15 V3 B Ос. √2-√3 ID. √2+√3 2 4 2 2