evaluate the following cos 47 cos13_ sin47 sin13
Answers
Answered by
0
I hope that it will help you
Attachments:
kushalpandey8858:
cos will be there
yes
but look at ur answer
okay
sorry for that
pls correct it
thank i
u*
bye
bye
Answered by
3
cosAcosB - sinAsinB = cos(A+B).
So cos47cos13 - sin47sin13 = cos(47+13).
So the answer is cos(60) i.e. (1/2)
So cos47cos13 - sin47sin13 = cos(47+13).
So the answer is cos(60) i.e. (1/2)
Similar questions