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Find all θ between 0 and 2π that satisfy the following: tan θ = -2.662 and cos θ > 0.? 10.45-9.59? How is 2 to the power of x translated if I change it to 2 to the power of x+3? As per the photon concept of light ,does a ray of light have an end in space and do different rays have different ends? Is iq 131 high for an engineering student?