Trigonometric Identities — CAT Previous-Year Questions
1 previous-year question on Trigonometric Identities from CAT, with full solutions. Practise free — check answers as you go; sign in to save your progress.
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Trigonometric Identities · CAT PYQs
CAT 2019 Slot 1 · QA
Q1.
The number of the real roots of the equation 2cos(x(x + 1)) = 2x + 2–x is