Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
RonnyDeKoning
Group Title
By the doublingsformulas there are 3 kinds for Cos 2 Aplha, which one do i need to use?
 2 years ago
 2 years ago
RonnyDeKoning Group Title
By the doublingsformulas there are 3 kinds for Cos 2 Aplha, which one do i need to use?
 2 years ago
 2 years ago

This Question is Closed

mark_o. Group TitleBest ResponseYou've already chosen the best response.1
do you know the formula for cos 2A?
 2 years ago

RonnyDeKoning Group TitleBest ResponseYou've already chosen the best response.0
dw:1353240750557:dw Which i have to use when?
 2 years ago

mark_o. Group TitleBest ResponseYou've already chosen the best response.1
ok good, which one do you need to use? it depends on what you are trying to solve
 2 years ago

RonnyDeKoning Group TitleBest ResponseYou've already chosen the best response.0
If i got fore eg: the sinus given I need to use the 3rth, there 3 different formulas?
 2 years ago

mark_o. Group TitleBest ResponseYou've already chosen the best response.1
for example you are trying to prove an identity that has a sine functions, then you can try to use the 3rd formula
 2 years ago

mark_o. Group TitleBest ResponseYou've already chosen the best response.1
but if it involves cosines functions then use the 2nd formula
 2 years ago

mark_o. Group TitleBest ResponseYou've already chosen the best response.1
ok...thnx ...:D good luck now ':D
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.