k^2=0.49

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Solution for k^2=0.49 equation: 


Simplifying
k2 = 0.49

Solving
k2 = 0.49

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Simplifying
k2 = 0.49

Take the square root of each side:
k = {-0.7, 0.7}

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