A community for students.
Here's the question you clicked on:
 0 viewing
¿Did_You_Know?
 2 years ago
Evaluate: tan105deg using the sum and difference formulas.
I
¿Did_You_Know?
 2 years ago
Evaluate: tan105deg using the sum and difference formulas. I

This Question is Closed

akash_809
 2 years ago
Best ResponseYou've already chosen the best response.1tan(a+b)=(tan a +tan b)/(1tan a tan b)....put a =60 and b =45 and solve

¿Did_You_Know?
 2 years ago
Best ResponseYou've already chosen the best response.0where u got 60 and 45?

akash_809
 2 years ago
Best ResponseYou've already chosen the best response.1tan(60+45)=tan105...right

akash_809
 2 years ago
Best ResponseYou've already chosen the best response.1tan 60 =\[\sqrt{3}\] and tan 45 =1

¿Did_You_Know?
 2 years ago
Best ResponseYou've already chosen the best response.0i am getting stuck at the part where it is: dw:1347964171044:dw

akash_809
 2 years ago
Best ResponseYou've already chosen the best response.1so \[\tan105= (1+\sqrt{3})/(1\sqrt{3}) \]

akash_809
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1347964267571:dw

¿Did_You_Know?
 2 years ago
Best ResponseYou've already chosen the best response.0wait. why did you square that?

akash_809
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1347965085424:dw

¿Did_You_Know?
 2 years ago
Best ResponseYou've already chosen the best response.0arent you suppposed to mutliply it by the bottom one?

akash_809
 2 years ago
Best ResponseYou've already chosen the best response.1no it is rationalization u multiply num and den both by a coomon value so that the expression remains unaffected

¿Did_You_Know?
 2 years ago
Best ResponseYou've already chosen the best response.0so it is always the numerator?

akash_809
 2 years ago
Best ResponseYou've already chosen the best response.1no depends on what simplifies the root if 1root 3 was there in numerator and 1+root 3 in den the you would multiply num and den by 1root 3...since (1+root 3)(1root3)=13...using a^2b^2

¿Did_You_Know?
 2 years ago
Best ResponseYou've already chosen the best response.0how would you know which one to multiply by tho?

akash_809
 2 years ago
Best ResponseYou've already chosen the best response.1multiply with a value that would make denominator a rational one
Ask your own question
Sign UpFind more explanations on OpenStudy
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.