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The number of points in (-oo,oo), for wh...

The number of points in `(-oo,oo),` for which `x^2-xsinx-cosx=0,` is

A

6

B

4

C

2

D

0

Text Solution

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To solve the equation \( x^2 - x \sin x - \cos x = 0 \) and find the number of points in the interval \((-∞, ∞)\) where this equation holds true, we will follow these steps: ### Step 1: Define the function Let \( f(x) = x^2 - x \sin x - \cos x \). ### Step 2: Differentiate the function To analyze the behavior of the function, we need to find its derivative: \[ ...
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