1.cosh(x)=sec alpha then cosech(x)=??
2.cosh^4(x)-sech^4(x)=??/
Anonymous:
2 qstn is wrong..its cosh^4x-sinh^4
Answers
Answered by
5
1. cosh (x) = sec α
cosh²(x) = sec²α
sinh²(x) = sec²α - 1 = tan²α (because cosh²(x) - sinh²(x) = 1 )
hence cosech²(x) = cot²α
that is, cosech(x) = +/- cot α
cosh²(x) = sec²α
sinh²(x) = sec²α - 1 = tan²α (because cosh²(x) - sinh²(x) = 1 )
hence cosech²(x) = cot²α
that is, cosech(x) = +/- cot α
Please confirm about the second part so that we can answer that accordingly.
Answered by
3
hope this helps you please mark my answer as brainlist and follow me
Attachments:
Similar questions