Sinx. Cosx=1/2?

1 Answer
F. Javier B. · mason m
May 2, 2018

See details below

Explanation:

Remember that #2sinxcosx=sin2x#

In our equation #sinxcosx=1/2# multiply by 2 both sides

#2sinxcosx=1#, then #sin2x=1#

Thus we have #2x=90º=pi/2+2kpi# because sinx is periodic

Finally we have #x=pi/4+kpi# where #k# is an integer

Related questions
Impact of this question
7368 views around the world
You can reuse this answer
Creative Commons License