Sum/difference trig problems please help urgent?
1.cos(345)
2.sin(405)
3.sin(10pi/24)
4.tan(-105)
Additional Details
answer has to be in rads please like 2pi/4
True or false trig problem please help easy 10pts?
b.sinx = -√3/2 x=pi/6
c.cosx= 1/2 x=7pi/6
d.tanx= √3 x=pi/6
e.cotx= -1 x=3pi/4
f.secx= -2 x=4pi/3
Solve the equation of the interval [0,2pi) please help trig?
a.sinx=1/2
b.(sinx+1)(cosx-1)=0
c.(2cosx-1)(sinx-1)=0
d.cosx= -√3/2
e.tanx= -1
Use the given information to calculate the exact value of the expression please help trig problem?
I got half of the first part do but cant find answer please help.
cosx=-√429/25 cosy=3/5 sinx=14/25 siny=4/5
a. find cos(x+y) b. find tan(x-y) c. find sin(x-y)
number 6 isnt halfway done.
cos a=-12/16 pi/2 ≤ a ≤ pi and sin b= 6/8 pi ≤ 6 ≤ -3pi/2
a. find sin(a-b) b. find cot(a+b) c. find cos(a-b)
You have somehow misinterpreted the nature of the problems, since “answer must be in rads” doesn’t make sense for the problems you’ve given. How and why it doesn’t make sense is left as an exercise for the student.
Please check the rules for General Questions, specifically the prohibition against asking for homework help.
If you have a general question on how trig works or a specific question on the hows or whys of a particular trigonometric identity, there are plenty of people willing to help with that.
You may open another thread to ask about aspects of the questions you don’t understand, but don’t ask other people to just do your homework problems for you.