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Calculate the square root of $2$
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$\cos\left(a+45\right)=\frac{\sqrt{2}}{6}$
Learn how to solve trigonometric equations problems step by step online. Solve the trigonometric equation cos(a+45)=(2^1/2)/6. Calculate the square root of 2. Divide 1.4142 by 6. This equation has no solutions in the real plane.