QUESTION 3 3.1 If x 44,5° and y = 27,7° %3D Use calculator to calculate the following (correct to two decimal places) Sin2(x-y) 1.12 tan y 3.2 simplify the following expressions with the use of the calculator: 3.2.1 sin 60° x tan 60° - 2(-sin 45°)(cos 45°)

Q: explain with pictures, words or equations what the equation tan (pi/4)= 1 means and why it is true

A:

Q: Write the equation of a sine function that has the given characteristics. Amplitude: 19 Period: 4…

A: Given that we need to find the equation of sine function whose  Amplitude = 19 Period = 4…

Q: What is the frequency of the sine wave determined by y= sin (450rx), where x is time in seconds? The…

A:

Q: If sinA=4/5 and cosB= -5/13, where A belongs to QI and B belongs to QIII, then find sin(A+B). How do…

A: Given that Where A in quadrant 1 and B in quadrant III

Q: cos - I resulted in a negative answer. Why is it impossible for cos to be 12 negative?

A: Let's find.

Q: Find the exact value of sin θ  and sec θ  when tan θ  =3/4 and sin θ  < 0.  Do not use a…

A: Given Data: tan θ  =3/4 The figure below represents the reference right angle triangle.

Q: Find the exact value of the expression cos 11π/6. Do not use a calculator.

A: To find the exact value of the expression,cos11π6. Solution: The given expression is , cos11π6…

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.