64 678
Assignments Done
99,2%
Successfully Done
In September 2018

Answer to Question #13075 in Trigonometry for Avruti Patel

Question #13075
If cos(alpha)+cos(beta)=0=sin(alpha)+sin(beta) then find the value of cos2(alpha)+cos2(beta)
Expert's answer
since cos(alpha)+cos(beta)=0=sin(alpha)+sin(beta), then this angles represent
opposite points on the unit circle.
Thus alpha=beta+pi
So,
cos2(alpha)+cos2(beta)=2cos(2*beta), where angles are determined by
alpha=beta+pi.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

Assignment Expert
07.08.13, 17:19

pi=3,1415926.. is a mathematical constant that is the ratio of a circle's circumference to its diameter.

Brenda
05.08.13, 23:41

what is pi ?

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions