Question

`lim_("x" -> 0)(1 - "cos x")/"x"^2` is equal to ____________.

विकल्प

• `1/2`

• -1

• 0

• 1

Answer 1

`lim_("x" -> 0)(1 - "cos x")/"x"^2` is equal to `underline(1/2)`.

Explanation:

`lim_("x" -> 0)(1 - "cos x")/"x"^2`

`lim_(x -> 0) "sin x"/(2"x") = 1/2` (Using L’hospital Rule ).