Use a double-angle identity to find the exact value of the expression 2 cos 15º -...
This Question: 1 pt Use a double-angle identity to find the exact value of the expression 2 tan 105° 1 - tan 105° Choose the correct answer below. OA-1 ОВ. va O C. 1 OD. OD ck to select your answer. Previous 2 tan 105 1 - tan2105 D B. 3 3 C. 1 OD. 2 OF. V2 3 V3 3 E. k to select your answer. Previous
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...
Use a double-angle identity to find the exact value of the expression. 2 cos 267.5° - 1 - 2
Use a half-angle identity to find the exact value of the following expression. tan 112.5° Which of the following is the correct value of tan 112.5°? OA. -1+ V3 OB. -1-12 O c. 1-2 OD. 1+12
Use a half-angle identity to find the exact value of the following expression. tan 15° Which of the following is the correct value of tan 15°? O A. -2-13 OB. -2+ V3 O C. 2+ 3 OD. 2-13
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
Use the sum/difference identities to simplify the expression. Do not use a calculator. 51 571 COS - + n- ola O A. cos (1) O B. cos (6) OD. cos (5) Find the exact value by using a sum or difference identity. cos 285° 4 OA. - V3 (V3 - 1) O B. V2 (13-1) O C. - 12(73 +1) OD. - v2(13 - 1)
Use the appropriate reciprocal identity to find the exact value of csc o for the given value of sin e sin = - csc 01 (Type an integer or a fraction. ) Enter your answer in the answer box. Identify the quadrant(s) of an angle that satisfies the given conditions. cos > 0, sec 0 > 0 Choose the correct answer below. O A. I and IV OB. I and III O C. II and III OD. III and IV...
Problem D Find the exact value of each expression. If the answer is an angle, the angle must be in radians. 1) sec tan-- V3 2) cos tan 2 5 I 8 4) tan sin 3) sintan 17 6) cos- 5) cos(sin
A. Use a double-angia idensty to find the exact value of the expnesson 1-tan Choose the corroct answor balow O B. 0 OC. 1 D, B. Write the expression as a product of trigonometric functions. cos 10x-cos 8x -D cos 10x-cos 8x = sin 7a+ sin 2 Chcose the correct answer below OB. 2 sin 2sin