music700
music700
14-11-2017
Mathematics
contestada
Trigonometry help. I cant do this
Respuesta :
dragonslasher
dragonslasher
14-11-2017
the answer is 0.921.
Apply the trig identity: cos (a + b) = cos a.cos b - sin a.sin b
cos
(75)
=
cos
(30+45)
=
cos30
⋅
cos45
−
sin30
⋅
sin45
=
0.921
Answer Link
musiclover10045
musiclover10045
14-11-2017
cos75 = 0.258819045 = sin15
Answer Link
VER TODAS LAS RESPUESTAS ( 13+ )
Otras preguntas
The big five trait dimensions were identified by means of
can someone solve this for me? (#13)
President nixon saw chief justice earl warren's retirement in 1969 as an opportunity to put what kind of justice on the supreme court
Which course at Reed College did Steve Jobs credit for inspiring him to create multiple typefaces for the Mac? A.Calligraphy B.Graphic Design C.Business Writin
evaluate each expression
A shirt that normally sells for $28.00 before discount was priced at $22.95 after discount what is the percent saved?
Solve the following system of equations using substitution. X=2y-7 4x+5y=24
Henry VIII was named head of the Church of England through the: English Bill of Rights Act of Succession Act of Supremacy
What financial problems did the Meiji leader face in 1871
A spinning ice skater will slow down if she extends her arms away from her body. Which of the following statements explains this phenomenon?
