Find all solutions to the equation.
cos^2x + 2 cos x + 1 = 0...
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Which triangles area would be calculated using the trigonometric area formula
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Find a number such that if you add 8 and divide the result by 4 you will get the same answer as if you subtracted 3 from the original number and divided by 2
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The suare root of 9x plus 7 plus the square rot of 2x equall to 7
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