Use a special right triangle to express cos 45" as a fraction or as a decimal to the nearest hundredth if necessary ()[0] Hant - Th Un 16 T

Q: Find the exact value, in radians, of the expression tan'- 13)

A:

Q: M 8 V55 N

A: Given query is to find the the value of sinM.

Q: Use an identity to find the exact value of cos(theta/2) given that cos(theta)=3/7 with 270 degrees

A:

Q: Let sinA=-4/5 with A in QIII and cosB=-3/5 with B in QII. Anwer Exactly. Find sin(A-B), cos(A-B),…

A: Given,

Q: Simplify. cos(-4x) · cos 2x – sin(-4x) · sin 2x cos(-2x_ sin(-6x) cos(-3x) cos(-x)

A: Using Cos(A+B) formula

Q: Use the fact that sin (38) 0.6157 to complete the expression. 22 cos() 0.6157

A: We have to use the fact  sin(38°) ≈ 0.6157 to complete the expression  cos(.... °) ≈ 0.6157

Q: If 180 is less than or equal to theta and greater than or equal to 270 degrees and cos (theta)=-2/9…

A: Here given as

Q: Compute arccsc(A) (the inverse cosecant of A), if A = -3.32 Your answer should be in radians, and…

A: A =-3.32