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Multiple Choice
Find the derivative of the given function. h(x)=sin(log4(x2))
A
x2ln4cos(log4x2)
B
xln42cos(log4x2)
C
cos(log4x2)
D
ln42cos(log4x2)
Verified step by step guidance
1
Identify the function h(x) = sin(log_4(x^2)). This is a composite function involving the sine function and the logarithm function.
Apply the chain rule for differentiation. The chain rule states that if you have a composite function f(g(x)), the derivative is f'(g(x)) * g'(x).
Differentiate the outer function, which is sin(u), where u = log_4(x^2). The derivative of sin(u) with respect to u is cos(u).
Differentiate the inner function u = log_4(x^2). Use the change of base formula for logarithms: log_4(x^2) = log(x^2) / log(4). The derivative of log(x^2) with respect to x is 2/x, using the chain rule.
Combine the derivatives using the chain rule: h'(x) = cos(log_4(x^2)) * (2/x) / ln(4). This gives the derivative of the original function.