Applying Trig Functions to Angles of Rotation - Page 2
Questions
- How to show? tan(90◦ − A) sec(180◦ + A) cos(90◦ + A) = 1
- What is the general solution of the equation #sec^2x-tanx=4#?
- How do you solve sin θ/2-cos θ=0? With 0° ≤ θ < 360°
- Write #sin x +sin 3x# as a product. Hence,find all angles #x# in the interval#[0,2pi]# that satisfy #sin x +sin 3x - cos x =0#?
- Given sin 40° ≈ 0.64, cos 40° ≈ 0.77, sin 15° ≈ 0.26, and cos 15° ≈ 0.97, which expression could be used to estimate sin 55°?
- What is the general solution of #2tan^2 3x-sec3x=1#?
- How will you going to answer a=10,A=61°,B=49°?
- Use the suggested substitution to write the expression as a trigonometric expression. Simplify your answer as much as possible. Assume 0 ≤ θ ≤ π2. ?
- How do I solve the following equation? The answers that I came up with are wrong
- Given that #tan2A = 3/4# and that the angle #A# is acute, calculate, without using tables, the values of: (i) #cos2A# (ii) #sinA# (iii) #tanA# (iv) #tan3A# ?
- If a = 5 & c = 6, then?
- What is the reference angle for θ = 210◦ ? Using that reference angle, determine the vaules for the six trigonometric functions of 210◦.
- How can you simplify #(sin(180˚ - theta))/(sin(90˚ - theta))#?
- When a 9-foot tall garden shed cast a 5-foot 3-inch shadow, a house cast a 28-foot shadow. What is the height of the house?
- In what quadrants will an angle in standard position have a positive tangent value?
- Θ is an acute angle. Find the value of θ in degrees. cos(θ)=0.8?
- Given that #sinθ = 0.6820# and that #θ# is in quadrant III, find #sin2θ# and the quadrant in which #2θ# lies?
- How do you determine the measure of an angle coterminal with the angle #400^circ#?
- What is the reference angle in degrees for #(31pi)/6# ?
- How do you find the five remaining trigonometric function satisfying #sintheta=3/8#, #costheta<0#?