Find the exact value of cos 75° using the half-angle identity. Choose the exact value of...
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 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
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 double-angle identity to find the exact value of the expression 2 cos 15º - 1 OB. - 3 OA. 2 13 OC. 13 OD 2 V3 1 OF. OE 2 w Click to select your answer. Previous
1. Using the half-angle formulas fine the EXACT value of cos(22.5o) 2. verify the identity cos(3x)=(1-4sin2(x))cos(x) 3. find the EXACT solutions in the interval [0,2pi) sin(2beta)-2cos(beta)=0 ******Please do not use and decimals in the set or answer process***** Thank you so much
Use a double-angle identity to find the exact value of the expression. 2 cos 267.5° - 1 - 2
QUESTION 3 Using the appropriate identity below, find the value of cos cos( 5 – B).ca (Angles are measured in radians.) Formula Sheet Sum & Difference Identities Half Angle Formulas CON 1 + cos(0) 2 cos(0) 2 sin - + cos(a+B) cos(a) cos(8) – sin(a) sin() cos(a-B) cos(a) cos(8) + sin(a) sin() sin(a+b) sin(a) cos(8) + cos(a) sin(8) sin(a -B) sin(a) cow (8) - cos(a) sin() tan(a)tan(B) tan(a+B) 1 - tan(a)tan (8) tan(a)-tan(8) tan(a-) 1+tan(Q) tan() Power Reduction Formulas tan...
QUESTION 4 Use trig identity to determine the exact value of the following expressions. Provide all steps solutions on submitted paper. 2 12-√2 √2-√6 4 tan(75°) B www 15 ) ( 13).co(+5)-(15) 187 V6 COS -7m 12 D.-2-13 csc(22.5°) V3 2 E. 2 A. √2-√2 √2-√6 B. 4 v tan(759) sin 71 18 57 COS 18 77 + COS sin 5 18 V3+V6 18 C2 -7 12 V COS 0.-2-13 csc(22.5) V3 E. 2 3+3 4 F
if csc x -13 and 3 <x< 2л. Use a half-angle identity to find cos Enter the exact answer. Enclose numerators and denominators in parentheses. For example, (a - b)/ (1 n). Equation Editor Common sin(a) tan(a) cos(a) Y 00 b sec(a) csc(a) cot(a) к Va Va a1 sina) cos (a tan о Ф X COS o
Find sin 105° first using a difference identity and then using a half-angle identity. Then compare the results. Which expression is a difference identity applied to sin 105°? Choose the correct answer. O A. sin 135º cos 30° + cos 135° sin 30° OB. sin 135° sin 30° - cos 135º cos 30° O c. sin 135° sin 30° + cos 135º cos 30° OD. sin 135ºcos 30° - cos 135º sin 30°