Let sin 0=u in the equation. Pri 9 sin 20-6 sin 0- 2 = 0 9u? - 6u - 2 = 0 Substitute u for sin 0. The solutions to a quadratic equation in the form au? + bu +c= 0 are shown below. -b+/b? - 4ac 2a u= To use the quadratic formula to solve for u= sin 0, first recognize the values that correspond to a 5, and c in the equation 9u? - 6u - 2 = 0. a = 9, b= - 6, and c = - 2 Solve for u. 1= -(-6)±/(-6) - 4(9)( - 2) u = 2(9) a 0.911 and - 0.244 Now, use u= sin 0 and find the corresponding values of 0. Begin with sin 0= 0.911. 0 = 65.6° and 114.4° (rounded to the nearest tenth)

Q: tan x cot x

A: Given:- tan(x) cot(x)  To find:- simplify the given expression

Q: Use reference angles to find the exact value of the expression csc 7π/6. Do not use a calculator.

A: We need to find the value of the given expression Using reference angles.

Q: Evaluate p3 sin 0 do dr.

A: Double integal

Q: Convert -150 degrees to radians.

A: Given             degree= 150             radians=?

Q: Evaluate the expression 4 tan 360° + 5 csc 270°

A:

Q: 9. Convert 320 to radian measure as an exact value, in simplest terms.

A: To convert 320° to radian measure: 320°=320×π180         =320π180         =16π9         =5.58505…

Q: Change 75 degrees to radian measure in terms of pie

A:

Q: convert 9pi/10 to degrees

A:

Q: Cos75

A: Given cos(75)

Q: convert 105 degrees to radians

A:

Q: Find the exact value of the expression sin 495°. Do not use a calculator.

A: Consider sin495∘

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.