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Question: Answered & Verified by Expert
The graphs of the polynomial $x^{2}-1$ and $\cos x$ intersect
MathematicsTrigonometric Ratios & IdentitiesWBJEEWBJEE 2019
Options:
  • A at exactly two points
  • B at exactly 3 points
  • C at least 4 but at finitely many points.
  • D at infinitely many points.
Solution:
2824 Upvotes Verified Answer
The correct answer is: at exactly two points

It is clear from the graph that it intersects at exactly two points.

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