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• Identical expressions

• -exp(x)*sin(x) + exp(x)*cos(x) = zero
• minus exponent of (x) multiply by sinus of (x) plus exponent of (x) multiply by co sinus of e of (x) equally 0
• minus exponent of (x) multiply by sinus of (x) plus exponent of (x) multiply by co sinus of e of (x) equally zero
• -exp(x)sin(x) + exp(x)cos(x) = 0
• -expxsinx + expxcosx = 0

• Similar expressions

• exp(x)*sin(x) + exp(x)*cos(x) = 0
• -exp(x)*sin(x) - exp(x)*cos(x) = 0
• -exp(x)*sinx + exp(x)*cosx = 0