engineering recuitment BARC Stipendiary Trainee Category II 2023 Mock Test Mathematics Differential Calculus Second Order Derivatives
If y = sin (ax + b), then what is \(\rm \dfrac{d^2y}{dx^2}\) at \(\rm x =-\dfrac{b}{a}\), where a, b are constants and a ≠ 0?
1
0
2
-1
3
sin (a - b)
4
sin (a + b)