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• Identical expressions

• - forty-nine *sin(seven *x) = zero
• minus 49 multiply by sinus of (7 multiply by x) equally 0
• minus forty minus nine multiply by sinus of (seven multiply by x) equally zero
• -49sin(7x) = 0
• -49sin7x = 0

• Similar expressions

• 49*sin(7*x) = 0