Answer:
2cosAcos2A, 4sinAcos^2A
Step-by-step explanation:
cos3A+cosA
2cos((3A+A)/2)cos((3A-A)/2)
2cos(4A/2)cos(2A/2)
2cosAcos2A
sin3A+sinA
2sin((3A+A)/2)cos((3A-A)/2)
2sin(4A/2)cos(2A/2)
2sin2AcosA
4sinAcos^2A
Answer:
3rd one, 4th one, 1st one, 2nd one
Step-by-step explanation:
1st one - 2.6
2nd one - (-3.125
)
3rd one - 10.35
4th one - -2.95
Answer:
I think 1/2 is the ans
Step-by-step explanation:
quadratic function equation
would help
Answer:
-14/25
Step-by-step explanation:
-4/5 * 7/10
Multiply the numerators
-4*7 = -28
Multiply the denominators
5*10 = 50
numerator/ denominator
-28/50
Divide top and bottom by 2
-14/25
For what? Sorry is there an attachment?
