SOLUTION: use an identity to solve the equation: six^2x -cosx+3=0
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Question 358876: use an identity to solve the equation: six^2x -cosx+3=0
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
,
,after using the Pythagorean identity.
,
.
Applying the quadratic formula,
,
.
However, these values are greater than 1, and also less than -1. Therefore the trigonometric equation does not have roots.
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