Sin0=1/2 cos0=1 sin0=-1/2 cos0=0 sin0=Root 3/2 cos0=-Root 2/2

Q: tan(sin-14/5+cos-11)

A: The given trigonometric expression is

Q: Sin115/12=sin30/x

A: To find value of x

Q: Cos(75^•) sin (195^•) Cos(75 degree’s) Sin (195 degrees)

A: Given expression: cos75° sin195°cos75°sin195°

Q: Let sinA = 7/25 and sinB = -3/5 Solve sin(A+B)

A:

Q: find the value of sin^2(21degrees)+cos^2(21 degrees) - sin(70degrees)/cos(20degrees

A: the value of sin^2(21degrees)+cos^2(21 degrees) - sin(70degrees)/cos(20degrees

Q: True or False sin2θ =1- cos2θ.

A: We can prove or disprove trigonometric identities using trigonometric table values of angles . For…

Q: True or False sin(sin-1 0) = 0 and cos(cos-10) = 0.

A: Given:         sin(sin−10)=0  and cos(cos−10)=0

Q: cos(13.6°) = cos(__°)cos(65.2°) + sin(__°)sin(65.2°)

A:

Q: Verify the identity: (cos 4x - cos 2x)/(sin 2x - sin 4x) = tan 3x

A:

Q: cos(2sin^-1(12/13)) Find the exact value (answer in radians)

A:

Q: sin2(78°) + cos2(78°)

A: Question is based on trigonometric ratios and angels.

Q: cos^2θ/2= 1+cosθ/2 derive the identity

A:

Q: Cos50⁰cos5⁰+sin50⁰sin5⁰?

A: Wehave to evaluate the given trigonometric value.For this we will use formula of trigonometric…

Q: Sin90/2+sin50/2

A: We have to add

Q: Verify identity cos2 x - sin2 x = 2 cos2 x - 1.

A: cos2x -sin2x=2cos2x-1

Q: sin 20 and cos20

A: Given, sinθ=-3437cosθ<0

Q: sec(23*Pi/6)

A:

Q: sinX+cosX=1   solve for X in radians

A:

Q: sin sin 8

A:

Q: tan(sin-1(4/5))

A: The given expression is

Q: Rewrite sin^2θcos^2θ in a way that does not use exponents and sinθ doesn't appear

A:

Q: sin[cos^-1(12/13)+tan^-1(4/3)]

A: Given: