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The equation e^(sin x)-e^(-sin x)-4=0 ha...

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

A

Infinite number of real roots

B

no real roots

C

exactly one real root

D

exactly four real roots.

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-QUADRATIC EQUATIONS & EXPRESSIONS-EXERCISE-II
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  4. The number of real roots of (x+(1)/(x))^(3)+ (x+ (1)/(x))=0

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  11. If the equation x^(2 )+ 2x + 3 = 0 and ax^(2) +bx+c=0, a, b, c in R, h...

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  12. If every pair from among the equations x^(2)+ax+bc = 0, x^(2)+bx+ ca...

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  17. The value of a so that the sum of the squares of roots of the equation...

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  18. If the roots of x^2+x+a=0 exceed , a then

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