FIND THE ANSWERS

1+cosx=2cos^2(x/2)?

Answer this question

Do you know the correct answer? Make money answering questions! Join now.
  • 1+cosx=2cos^2(x/2)?


Answers

Find right answers rigt now! 1+cosx=2cos^2(x/2)? More questions about Science & Mathematics
Read more
Positive: 47 %
cosx=2cos^2(x/2)-1 1+cosx=2cos^2(x/2) Written May 29, 2015 • Answer requested by 1 person. More. Related Questions.
Read more
Positive: 44 %

More resources

cosx=2cos^2(x/2)-1 Putting this value in eq1 sqrt((1-2cos^2(x/2)+1)/(1 +2cos^2(x/2)-1)) sqrt((2-2cos^2(x/2))/(2co s^2(x/2))) sqrt((1-cos^2(x/2))/(cos^ 2(x/2)))
Read more
Positive: 47 %
1+cosx=2cos^2(x/2) (2cos^2(x/2)*tan^2(x/2))/2=sin^2(x/2) Show full answer. Not the answer you are looking for? Search for more explanations. Type your reply.
Read more
Positive: 42 %
Okay, let's consider dividing both sides by #tanx# to begin with: #(2cos^2(x/2)cancel(tanx))/cancel(tanx) = (cancel(tanx)(1 + cosx))/cancel(tanx)#
Read more
Positive: 28 %
... (x/2)cos(x/2) cosx=2cos^2(x/2)-1=1-sin^2(x/2) 所以sinx/(1+cosx)=[2sin(x/2)cos(x/2)]/[2cos^2(x/2)]=sin(x/2)/cos(x/2)=tan(x/2) 同理(1-cosx ...
Read more
Positive: 5 %

Show more results