Asked by Jake
How do I write arcsin4 in the form a+ib. I know the answer but do not Know how to get to it
Take sinus of both sides:
4 = sin(a)cosh(b) + i cos(a)sinh(b)
Equate real and imaginary parts. You then see that you can put a = pi/2. And it then follows that b = arccosh(4)
Thanks for getting back so promptly , unfortunately i do not what you mean by take sinus of both sides. I have got the stage you have it is the very final stage I van not do
Take sinus of both sides:
4 = sin(a)cosh(b) + i cos(a)sinh(b)
Equate real and imaginary parts. You then see that you can put a = pi/2. And it then follows that b = arccosh(4)
Thanks for getting back so promptly , unfortunately i do not what you mean by take sinus of both sides. I have got the stage you have it is the very final stage I van not do
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