Let \( f(x) \) be a continuous function for all \( x \in R \) and \( f^{\prime}(0)=1 \). Then \(...
Channel:
Subscribers:
456,000
Published on ● Video Link: https://www.youtube.com/watch?v=fhEww_2ktfo
Let \( f(x) \) be a continuous function for all \( x \in R \) and \( f^{\prime}(0)=1 \). Then \( g(x)=f(|x|)-\sqrt{\frac{1-\cos 2 x}{2}} \) at \( x=0 \) is
(A) differentiable at \( x=0 \) and its value is 1
(B) differentiable at \( x=0 \) and its value is 0
(C) non-differentiable at \( x=0 \) as its graph has sharp turn at \( x=0 \)
(D) non-differentiable at \( x=0 \) as its graph has vertical tangent at \( x=0 \)
ЁЯУ▓PW App Link - https://bit.ly/YTAI_PWAP
ЁЯМРPW Website - https://www.pw.live