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The equation e^(sinx)-e^(-sinx)-4=0 has ...

The equation `e^(sinx)-e^(-sinx)-4=0` has (A) infinite number of real roots (B) no real roots (C) exactly one real root (D) exactly four real roots

A

no real roots

B

exactly one real root

C

exactly four real roots

D

infinite number of real roots

Text Solution

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The correct Answer is:
A
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