HARD
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If sinh2tanh-1x=1160, then x=

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Important Questions on Hyperbolic Functions

HARD
Let k>0 and t=sech-112-cosech-13k. If 3et=2+3, then k=
MEDIUM
The domain of the function fx=sec-13x-4+tanh-1x+35 is
HARD
If tanh-1x+iy=12tanh-12x1+x2+y2+i2tan-12y1-x2-y2, where x, yR, then tanh-1iy=
EASY
The imaginary part of tan-1cosθ+isinθ is