Math, asked by harishgorai69, 4 months ago

cos hy =
a)cosiy
b)siniy
c)tan iy
d)cot iy

Answers

Answered by riddhima8

Answer:

cosha=2ea+e−a,sinha=2ea−e−a. From these definitions, the following hyperbolic trigonometric identities can be derived which are strikingly similar to the standard trigonometric identites: cosh ⁡ x = cosh ⁡ ( − x ) \cosh x = \cosh (-x) coshx=cosh(−x)

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