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• Identical expressions

• -(one / two + x)*sin(x) = zero
• minus (1 divide by 2 plus x) multiply by sinus of (x) equally 0
• minus (one divide by two plus x) multiply by sinus of (x) equally zero
• -(1/2 + x)sin(x) = 0
• -1/2 + xsinx = 0
• -(1 divide by 2 + x)*sin(x) = 0

• Similar expressions

• (1/2 + x)*sin(x) = 0
• -(1/2 - x)*sin(x) = 0
• -(1/2 + x)*sinx = 0