1. Find the exact value of sin 225° as a sine of the difference of two angles.

Q: Find the radian angle x in quadrant two where tan(x) = x = - √√3 3

A:

Q: Use double- and half-angle formulas to find the exact value of the expression sin 22.5°.

A: Given: sin 22.5° To find: The exact value by using double and half-angle formula.

Q: Find the values of the three trigonometric functions of an angle A if its sine is 3/5 .

A: Given: sinA=35 sinθ=Opposite sideHypotenuse=35

Q: 1. Explain the meaning of sin 30° =0.50000.

A:

Q: The sine of 80° has the same value as sine of 100. O True O False

A:

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: Determine the reference angle of θ = 31π/6 and find the value of sin²θ + cos²θ. Kindly note that…

A: Given, θ = 31π/6 Where θ lies in 3rd quadrant where sinθ & cosθ is negative

Q: Find the reference angle for radians 11x 5

A:

Q: Use the half-angle formula to find the exact value sin (π/8)

A: Trigonometry

Q: Find the value of tan 135° using the reference angle

A: We use Trigonometry table

Q: Answer (a) through (d). Please show your work.

A:

Q: What is the value of sin(330°)?

A: Our Aim is to tell the value of sin 330°=?

Q: What is the sin of θ = 40°?

A:

Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.