The vertical displacement of the end of a robot arm (in cm) at time t (in [16 marks] seconds) is given by y = 8 + 7 cos 3t + 7 cos 6t: (a) Find all times, t > 0, (in...
The vertical displacement of the end of a robot arm (in cm) at time t (in [16 marks] seconds) is given by y = 8 + 7 cos 3t + 7 cos 6t: (a) Find all times, t > 0, (in...
I need to obtain the following identity, sin5θ = 1/16 (sin5θ - 5sin3θ + 10sinθ) by using the formula, sinθ = 1/2i(eiθ- e-iθ) I'm finding complex number quite taxing so any help would be...
Simplify csc^2x-1/cot^2x
( cos x + sinx )2 1 + 2 sinx cos x = cos x tan x csc x
The question asks to the nearest minute, it also asks express 172.45 as an angle.
Solve sin(x)(sinx+1)=0 a)+/- πn, x=π/2 +/-2πn b) π/n+/- 2πn, x=3π/2+2πn c) x=+/- πn d) +/-πn, x=3π/2 +/- 2πn I...
I'd like to know how to solve this problem We are learning trigonometric identities
2cscx+5=1 solve on the interval [0,2π) a) π/3, 5π/3 b) π/6, 5π/6 c) 2π/3, 4π/3 d)7π/6, 11π/6 2) solve...
The value π/12 is a solution to 4cos^2(4x)-3=0. a) true b) false ??? Do I plug π/12 in place of x? Can you show...
if csc(theta)=sqrt(15)/15, what is sin(theta)?
write each expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression and all functions are 0 only. 0 meaning theta
Could you show me how to us the product-to-sum method to find the answer? Thanks!
Could you show me how to use the sum to product method to answer this? Thanks!
How would I go about using the product-to-sum identity to figure this out?
Would I use the cofunction identity to figure this out? If so, how?
I'm having trouble proving these trig identities. Help is greatly appreciated. Thanks in advance! 1) 1- sinx/cosx = cosx/ 1+sinx 2) sin^2x = 1- cos^2x 3) sin2x/2sinx = cosx 4)...
Could you please make one side equal the other?
I'm having trouble trying to prove these trig identities. Help is greatly appreciated! Thanks in advance! 1) cot^2θ +1/sec^2θ = cot^2θ 2) 1+cosx/sinx = sinx/1...
If 270º <x< 360º , show that √(2+√(2+2cosx)) = 2 sin x/4. Thank You! :)
need help solving this trognometirc identity