Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

Prove algebraically that the equation is an identity. (5cosC-2sinC)^2+(2cosC+5sinC)^2=29

OpenStudy (anonymous):

one can relativley see that an answer is 29 proof.|dw:1318257384834:dw|

OpenStudy (anonymous):

Sorry, but i can't understand the last 3 lines of this.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Arriyanalol: i need help
1 day ago 7 Replies 1 Medal
Arriyanalol: CONGRATS to me
1 day ago 8 Replies 2 Medals
Legomaster346: What colleges are good that are near Arab Alabama?
1 week ago 5 Replies 0 Medals
Arriyanalol: i need help
1 week ago 6 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!