Home › TS EAPCET (Engineering) › Mathematics › Differentiation › What is the value of d/dx (tan x) at x = pi/4?
What is the value of d/dx (tan x) at x = pi/4?
A1
Bsqrt(2)
C2
D1/2
Answer & Solution
Correct answer: C. 2
The derivative sec^2 x at pi/4 is (sqrt(2))^2 = 2.
Related questions
The derivative of ln x at x = 2 isFor x not equal to 0, d/dx of x^-2 equalsIf f is differentiable, then d/dx of 5f(x) equalsLogarithmic differentiation is useful mainly because logarithmsThe function y = x^(1/3), inverse of x^3, is not differentiable atThe discrete counterpart of differentiation isWhich derivative notation is named after Gottfried Leibniz?Differentiating a polynomial again and again eventually gives