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The equation e^(sin x) - e ^(-sin x) ...

The equation ` e^(sin x) - e ^(-sin x) - 4 = 0 ` has

A

infinite number of real roots

B

no real root

C

exactly one real root

D

exactly four real roots

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Verified by Experts

The correct Answer is:
B
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VIKAS GUPTA (BLACK BOOK) ENGLISH-QUADRATIC EQUATIONS -EXERCISE (SUBJECTIVE TYPE PROBLEMS)
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