What are the opposite rays? I can’t see them
3*6.022*10^23 no of molecules in 3.0 moles of sucrose
Answer:
502.4
Step-by-step explanation:
Volume of a cylinder(formula)=πr2h
So pie is 3.14
3.14×4×4(radius2)×10
This is equal to 502.4
Hope it helped
The answer is 6, this is because the first step is you put the numbers in order then you find the mode by seeing what number is the most
Answer:
We have to prove
sin(α+β)-sin(α-β)=2 cos α sin β
We will take the left hand side to prove it equal to right hand side
So,
=sin(α+β)-sin(α-β) Eqn 1
We will use the following identities:
sin(α+β)=sin α cos β+cos α sin β
and
sin(α-β)=sin α cos β-cos α sin β
Putting the identities in eqn 1
=sin(α+β)-sin(α-β)
=[ sin α cos β+cos α sin β ]-[sin α cos β-cos α sin β ]
=sin α cos β+cos α sin β- sinα cos β+cos α sin β
sinα cosβ will be cancelled.
=cos α sin β+ cos α sin β
=2 cos α sin β
Hence,
sin(α+β)-sin(α-β)=2 cos α sin β
