this is a+b Plot the point given in polar coordinates. (-4, 405°) Use the given information...
Use the given information to find the exact value of the expression\(\cos \alpha=-\frac{7}{25}, \alpha\) lies in quadrant \(I I I\), and \(\sin \beta=\frac{\sqrt{21}}{5}, \beta\) lies in quadrant II . Find \(\cos (\alpha+\beta)\).A. \(\frac{-14-24 \sqrt{21}}{125}\)B. \(\frac{-48+7 \sqrt{21}}{125}\)c. \(\frac{48-7 \sqrt{21}}{125}\)D. \(\frac{14+24 \sqrt{21}}{125}\)
Use the given information to find the exact value of the expression. 4 5 22) tan a = , a lies in quadrant III, and cos B = - 3' ß lies in quadrant II 13 Find a) sin (a - b) and b) tan (a + b). 9
Use the given information to find the exact value of the expression. sin a= 20 29 a lies in quadrant II, and cos 24 25 Blies in quadrant I. Find sin (a - ). O A. 644 725 ОВ. 333 725 C. 364 725 627 D. 725
This Question: 5 pts 11 of 26 (14 complete) Use the given information to find the exact value of cos 20. 3 sin = 5 O lies in quadrant 1 O A. 25 24 OB. O c. 7 25 OD. 7 25
3. Given: A and B are positive acute angles, where sin A = { and cos B = 3 Find the exact value of sin(A+B). 4. Given: angles A and B are in Quadrant I, where 5 tan 4= - and sin B=- V74 Find the exact value of tan(A+B). 5. Given: A lies in Quadrant III and B lies in Quadrant II, sin A=-.- and cos B= Find the exact value of cos(A-B). 17
use the info given below to find cos(a+b) tan a= 3/4, with a in quadrant III sin b= 15/17, with b in quadrant II = O TRIGONOMETRIC IDENTITIES AND EQUATIONS Sum and difference identities: Problem type 3 Use the information given below to find cos(a+b). 3 tana= with a in quadrant III 4' 15 with B in quadrant II 17 sin B = Give the exact answer, not a decimal approximation. cos (a + B) = 0 금 X 5...
Use the given information to find the exact value of each of the following. a.sin2theta b.cos2theta c.tan2theta. sin theta 9/13, theta lies in quadrant Use the given information to find the exact value of each of the following. a. sin 20 b. cos 20 C. tan 20 9 sin 0 = e lies in quadrant II 13 a. sin 20 = (Simplify your answer Type an exact answer using radicals as needed. Use integers b. cos 20 = (Simplify your...
From the information given, find the quadrant in which the terminal point determined by t lies. Input I, II, III, or IV (a) sin(t) < 0 and cos(t) <0, quadrant (b) sin(t) > 0 and cos(t) <0, quadrant (c) sin(t) > 0 and cost) > 0, quadrant (d) sin(t) < 0 and cos(t) > 0, quadrant Question Help: Worked Example 1 Message instructor Submit Question
use the info. given below to find sin(a-b) cos a= 5/13, with a in quadrant IV cos b= -5/13, with b in quadrant III O TRIGONOMETRIC IDENTITIES AND EQUATIONS Sum and difference identities: Problem type 3 Use the information given below to find sin(a - b). COS 7 5 with a in quadrant IV 13 5 with B in quadrant III 13 cos B 1 Give the exact answer, not a decimal approximation. sin (a - b) = 0 8...
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,...