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Calculating the secant of $4$ degrees
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$derivdef\left(-1.529886\right)$
Learn how to solve definition of derivative problems step by step online. Find the derivative of sec(4) using the definition. Calculating the secant of 4 degrees. Find the derivative of -1.529886 using the definition. Apply the definition of the derivative: \displaystyle f'(x)=\lim_{h\to0}\frac{f(x+h)-f(x)}{h}. The function f(x) is the function we want to differentiate, which is -1.529886. Substituting f(x+h) and f(x) on the limit, we get. Subtract the values 1.529886 and -1.529886. Zero divided by anything is equal to zero.