Q. 1. Differentiate the following functions:(a) f(x)=ex2+2ex+xe2+xe2+xex
Apply Sum Rule: To differentiate the function f(x)=ex2+2ex+xe2+xe2+xex, we will apply the sum rule of differentiation, which allows us to differentiate each term separately.
Differentiate ex2: Differentiate the first term ex2 with respect to x using the chain rule. The derivative of eu with respect to x is eu⋅dxdu, where u=x2 in this case.dxd(ex2)=ex2⋅dxd(x2)=ex2⋅2x
Differentiate 2ex: Differentiate the second term 2ex with respect to x. The derivative of a constant times a function is the constant times the derivative of the function.(dxd)(2ex)=2×(dxd)(ex)=2×ex
Differentiate xe2: Differentiate the third term xe2 with respect to x. Since e2 is a constant, the derivative of a constant times x is just the constant.(dxd)(xe2)=e2
Differentiate xe2: Differentiate the fourth term xe2 with respect to x. The derivative of x to a constant power is the constant power times x raised to the power minus one.(dxd)(xe2)=e2⋅xe2−1
Differentiate xex: Differentiate the fifth term xex with respect to x using the product rule. The product rule states that (dxd)(uv)=u′(v)+u(v′), where u=x and v=ex.(dxd)(xex)=(dxd)(x)⋅ex+x⋅(dxd)(ex)=1⋅ex+x⋅ex=ex+xex
Combine Derivatives: Combine the derivatives of all terms to get the derivative of the entire function f(x).f′(x)=(dxd)(ex2)+(dxd)(2ex)+(dxd)(xe2)+(dxd)(xe2)+(dxd)(xex)f′(x)=ex2⋅2x+2⋅ex+e2+e2⋅xe2−1+ex+xex
Simplify Expression: Simplify the expression for the derivative. f′(x)=2xex2+2ex+e2+e2⋅xe2−1+ex+xex
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