Hey guys, I got stuck at a maths question on 'Local Linear Approximation : Differentials'. Can anyone help me?

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The hypotenuse of a right triangle is known to be 10 in exactly, and one of the acute angles is measured to be 30 degrees. with a possible error of (plus minus) 1 degree.

(a) Use differentials to estimate the errors in the sides opposite and adjacent to the measured angle.

(b) Estimate the percentage errors in the sides.