Trigonometry Answers

solve root 3 tan theta=1

if cos 42 degrees=a then find the value of tan 48 degrees

in a triangle ABC prove that sin(A+B)/2=cosC/2

Ravi has a plane triangular pilot ABC in which AB = 9m, BC = 7m and CA = 8m. A Flag is hoisted at the mid point M of the side AC. If the top of the Flag subtends an angle 15° at the corner B of the plot, determine the height of the Flag From the ground.

Question number 1,2,3,4,5 on
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Solve the following for 0 ≤ θ ≤ 720°

a) 3cosθ – 2 = 0

b) 2sin2θ – sinθ – 1 = 0
Solve the following for -2π ≤ θ ≤ 2π

a) 3tan2θ – 1 = 0

b) 12cos2θ – 6 = sinθ

prove that sin(40+x).cos(10+x)-cos(40+x).sin(10+x)=1/2

What is the value of sin^2(α )+sin^2(β )+sin^2(γ) ? Why?

Solve the following trig equation and state the solutions: 2sinx-cscx=0

2sinA + 3cosA = 2

Prove that:

3sinA - 2cosA = +/- 3