Edmund5390 Edmund5390
  • 14-03-2024
  • Mathematics
contestada

Given that cosθ = -(√7)/3, (π/2) < θ < π, find the exact value of each of the following:
a) sin(2θ)
b) cos(2θ)
c) sin(θ/2)
d) cos(θ/2).

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