Find the The Slopes of the tangent and the normal to the following curves at the indicated points :
y = 2x2 + 3 sin x at x = 0
Given:
y = 2x2 + 3sinx at x = 0
First, we have to find of given function, f(x),i.e, to find the derivative of f(x)
(xn) = n.xn – 1
The Slope of the tangent is
⇒ y = 2x2 + 3sinx
= 2
(x2) + 3
(sinx)
= 2
2x2 – 1 + 3
(cosx)
(sinx) = cosx
= 4x + 3cosx
Since, x = 2
⇒ x = 0 = 4
0 + 3cos(0)
cos(0) = 1
⇒ x = 0 = 0 + 3
1
⇒ x = 0 = 3
The Slope of the tangent at x = 0 is 3
⇒ The Slope of the normal =
⇒ The Slope of the normal =
⇒ The Slope of the normal =