Question

sin7.5=
cos7.5=
tan7.5=
cot7.5=

Answer 1

7.5 in rad. or in degree?

Answer 2

no with solutions

Answer 3

i meant the question

Answer 4

Do you want the answers in radians or in degrees?

Answer 5

for example: sin15=2cos7.5\[\times\]sin7.5

Answer 6

sin15=/= 2cos7.5!!!

Answer 7

no for example
it means you solve it

Answer 8

do you understand?

Answer 9

no!

Answer 10

I do not want,I solve it and send for you

Answer 11

may you solve it?

Answer 12

i thought you were saying that sin15 = 2sin7.5cos 7.5 , right?

Answer 13

No No i said for example

Answer 14

It means This way I can solve

Answer 15

you're not solving.. you're just expressing it in a more complicated way..

Answer 16

Yes
Hey freind I'm From Iran and PM is here and I go eat lunch

Answer 17

see you later for 20min or 1 day
may solve it?
thank you very much

Answer 18

sin7.5= 2sin3.75cos3.75
cos7.5=2(cos3.75)^2 - 1
tan7.5= (2tan3.75)/[1-(tan3.75)^2]
cot7.5= 1/tan7.5 =[1-(tan3.75)^2]/ (2tan3.75)
If that's what you want

Answer 19

yes yes
thank you very much
see you lator and I go eat lunch because I'm very hungry