- #1
KaleLetendre
- 13
- 10
Question:
If cosθ=(3/5) and 0<θ<2pi
determine the value of sin[θ+(pi/6)]
Attempt:
θ=cos^-1(3/5)
θ=0.927295218
sin[θ+(pi/6)]=0.992820323
real answer = 0.992820323, -0.39282
How do i find the second value, all i can find is 0.992820323 but not -0.39282
If cosθ=(3/5) and 0<θ<2pi
determine the value of sin[θ+(pi/6)]
Attempt:
θ=cos^-1(3/5)
θ=0.927295218
sin[θ+(pi/6)]=0.992820323
real answer = 0.992820323, -0.39282
How do i find the second value, all i can find is 0.992820323 but not -0.39282