X/5=3 multiply both sides by 5
x=15
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:
10
Step-(by-step explanation:
(9-3)+(1-9)
(6)^2 + (-8)^2
36 + 64
= 100 square root of 100 is 10
hope I helped!!
The errors are ...
... The box ends and the minimum are in the wrong places.
_____
The data sorted in order is 1, 6, 26, 27, 30, 31, 33, 34, 59.
The minimum is 1, not 0.
The first quartile is the average of 6 and 26, which is 16, not 10.
The median is 30, as shown.
The third quartile is the average of 33 and 34, which is 33.5, not 35.
The maximum is 59, as shown.
