Find the value of the missing angle (in degrees).  Provide a single number as your answer. cos(23.7°) = cos(__°)cos(57.6°) + sin(__°)sin(57.6°)

Q: Calculate cos(-628°)

A: Use the trigonometric identity, cos-x=cosx                ...(1)cos2×3600-x=cosx…

Q: Evaluate tan (315°) + sin (150°) =

A: To find:- tan315°+sin150°

Q: Find the value of the missing angle (in degrees).  Provide a single number as your answer. cos(__°)…

A: we know coa(a-b)=coa(a)cos(b)+sin(a)sin(b)

Q: Convert 7π / 3 radians to degrees.

A: 7π3Now, we know that π=180°So,2π3=75×180

Q: Determine the exact value of cos (15°), sin (15°), and tan(15°).

A: To find the value of: cos (15°), sin (15°), and tan(15°)   Using trigonometric formula:

Q: Sketch the angle and write the sec and tan of the angle if the terminal side of the angle passes…

A: NOTE: Refresh your page if you can't see any equations. . the given point is so here we have

Q: Find the measure of cos-1 (-0.5) in degrees and radians.

A: cos-1-0.5

Q: Find the reference angle for radians 11x 5

A:

Q: Is three radians more or less than 180 degrees

A: Three radian is less than 180 degree.

Q: Sin(16.35°)and csc(16.35°)

A: To find sin(16.35)° and csc(16.35)°

Q: Find the exact value of the expression cos 240°.Do not use a calculator.

A: It is known that cosx+y=cosxcosy-sinxsiny and cos180∘ =-1, sin180∘ =0, cos60∘ =12, sin60∘ =32.

Q: Find the value of the missing angle (in degrees).  Provide a single number as your answer.…

A: