Question Solve the equation θ∈/RAlternative Form No real solution Evaluate cos(2θ)×3cos(θ)=4Multiply More Steps Evaluate cos(2θ)×3cos(θ)Multiply the terms cos(2θ)cos(θ)×3Use the commutative property to reorder the terms 3cos(2θ)cos(θ) 3cos(2θ)cos(θ)=4Rewrite the expression 3(2cos2(θ)−1)cos(θ)=4Expand the expression 6cos3(θ)−3cos(θ)=4Move the expression to the left side 6cos3(θ)−3cos(θ)−4=0Calculate cos(θ)≈1.061964Solution θ∈/RAlternative Form No real solution Show Solution Graph
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