"Cosh"^(4)(x)-"Sinh"^(4)(x)=...

`"Cosh"^(4)(x)-"Sinh"^(4)(x)=`

A

cosh(x)

B

cosh(2x)

C

sinh(x)

D

sinh(2x)

Text Solution

Verified by Experts

The correct Answer is:

B

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AAKASH SERIES-HYPERBOLIC FUNCTIONS -EXERCISE-I

If tanh(x)=(3)/(5) then cosh(2x)=
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"Cosh"^(4)(x)-"Sinh"^(4)(x)=
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"Cosh"^(-1)(2)=
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"Tanh"^(-1)((1)/(3))=
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sinh^(-1)(2^(3//2))=
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Sinh (ix) =
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If cosh^(-1)(x)=log(e )(2+sqrt(3)), then x =
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If |x| lt 1, then (1)/(2) log((1+x)/(1-x))=
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If x=tanh^(-1)(y), then log(e )((1+y)/(1-y))=
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If log(5+sqrt(26))=sinh^(-1)(k) then k =
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If sinh^(-1)2+sinh^(-1)3=x rArr cos hx=
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If x=log[y+sqrt(y^(2)-1)], then y =
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2tanh^(-1)((1)/(2))=
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e^(log(cosh^(-1)2))=
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"Sech"^(-1) (sin theta)=
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If log(3+2sqrt(2))=cosh^(-1)(k) then k =
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If log(sqrt(5)+2)=sinh^(-1)(k) then k =
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If e^(sinh^(-1)(tan theta))=k then show that k=sec theta +tan theta
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"Sech"^(-1)((1)/(3))=
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