Calculus Help: Squeeze's Theorem: Determine a∈R such that the following function is continuous at

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Health & Science MultivariableLimits Limits Functions Calculus SqueezeTheorem Techniques

Determine a∈R such that the following function is continuous at (0,0):
f(x,y)={█(√(x^2+y^2 ) sin⁡(1/(x^2+3y^2 )) if (x,y)≠(0,0),@a if (x,y)=(0,0))┤

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