write the following as a product of trigonometric functions 8)siå.sin 4 A)2cos 188 cos 88 Objgclive (2) Use product-to-sum and sum-to-proxduct iklentities B)2sin D) 2 sin 88 sin cos Find the exact value by using a half-angle identity 9) sin 22.5 A) Objective (3) Use half-angle identitis Use an identity to write the expression as a single trigonometric function or as a single number 10) , 1-cos62ã D) sin 31° A) cos 31 Objextive: (3) Use half-angle identities B) cot 31 C) tan 31 Solve the equation for exact solutions. 11)600s-1 x=Ï A) B)å¾åå£ Objective: (7.7) Solve Inverse Trigonometric EquationI Find the exact value of the real number y 12) y = arcsec (-1) A) 2Ï B) C) 0 D)Ï Objective: (1) Find inverse function values. Find the missing parts of the triangle. If necessary, round angles to the nearest degree and give exact values of side lengths A) B = 90", C-60", b=4,0 C)B-60°, C = 90, b-4 B)B=60, C-9, b = 413 D) no such triangle Objective (3) Find unknown angles using the law of sines
