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 ( 88+ )
Otras preguntas
these are the number of baskets joe scored in his basketball game. what is the mean of the data set? 3,3,4,4,8,8,8,10,12,20
Janet earns 7.55 per hour mowing lawns. Kelsey earns twice that amount per hour babysitting and ty earns 1.25 less per hour than kelsey by selling lemonade. how
Expression equivalent to 1/2(12x+14y)
Las últimas noticias afirman que el (1) You answered (blank) Alfonso ha devastado la (2) You answered (blank) este del paÃÂs. El fuerte viento (3) You answer
Hayden bought 48 new training cards.Three Fourths of the new cards are baseball cards.How many baseball cards did he buy?
Which expression is equivalent to?
how many times does 2 go into 16??? plz help
how many years will it take for 20$ to grow to 100 if the simple interest rate is 4% annually
why does the alcohol level in the thermometer rises or falls when you place it in water?
What does not belong 15/18, 5/6, 60/72, 145/180
