thobza
thobza
11-03-2017
Mathematics
contestada
Show that cos(A+45)=cos45(cosA-sinA)
Respuesta :
ghanami
ghanami
11-03-2017
Hello here is a solution :
co(a+b) =cosacosb -sina sinb
cos(A+45)=cosAcos45-sinAsin45
cos45=sin45
cos(A+45)=cosAcos45-sinAcos45=
cos45(cosA-sinA)
Answer Link
VER TODAS LAS RESPUESTAS ( 87+ )
Otras preguntas
If you are deaf, what language do you think
why do heart cells have a higher percentage of mitochondria than liver and pituitary gland cells?
What three European peoples originally came together to form the English people and English language
What is the mass of 0.5 moles of hydrogen gas
hãy kể về một kỉ niệm với người bạn tuổi thơ khiến em nhớ mãi( ko chép mạng)
4. After Susan finishes her speech, the crowd goes wild. Leo says, The cheering was as wild as that of the crowd at a dramiship badeball cane Spinelli, 155) Wha
The following are the percentage profitability data (%) for the top 12 American corporations. 24, 39, 33, 61, 41, 46, 32, 27, 13, 55, 35, 32, 30 Find the mean a
If the product price is $100, average variable cost $40 per unit, and the total fixed costs are $120,000, what is the breakeven point
1/2 divided by 1 3/7
Sixty percent (60%) of those who attended the soccer game were parents. There were 120 people who attended the soccer game. How many parents attended the soccer
