I believe the appropriate volume is 160.
We are to verify the identity:
cos(α-B)-cos(α+B) = 2 sinα sinβ
Left hand side = cos(α - B)-cos(α + B)
= cosα cosβ + sinα sinB - (cosα cosB - sinα sinβ)
= cosα cosβ + sinα sinB - cosα cosB + sinα sinβ)
= sinα sinβ + sinα sinβ
= 2 sinα sinβ
= Right Hand side
Answer:
x=12
Step-by-step explanation:
（X-8)/7=2
X-8=14
X=22
Answer:
We can't seee the whole problem...
Step-by-step explanation:
