Answer:
125
Step-by-step explanation:
Answer:
ok so i think your gonna haveto use addition tell me if im wrong
Step-by-step explanation:you have a blessed thanksgiveing
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
Answer:
Step-by-step explanation: ';iystugiup8h;klu
Answer:
There is two equations because it has to have two. One is going to have a positive answer and the negative answer. It just depends on the question and what it is asking g you
