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:
Step-by-step explanation:
To convert decimals to fractions, you look at the place of the last digit of the fraction (i.e. the digit that the farthest right from the decimal)
For 0.3, 3 is in the tenths place, so we end up with the fraction
For 0.46, 6 is in the hundreths place, so before simplifying we have
The GCF of 46 and 100 is 2 so we divide the fraction by to get ÷ =
For 0.075, the 5 is in the thousandths place, so before simplifying we have
The GCF of 75 and 1000 is 25 so we decide the fraction by to get ÷ =
Debe ser los 462 no se si es sierto
Answer:
a formula that gives the solutions of the general quadratic equation
Step-by-step explanation:
Really just the general formula that gives the solutions
formula: x2 + bx + c = 0 and that is usually written in the form x = (-b ± √(b2 − 4ac))/(2a)
Answer:
20kilometers+15kilometers=35kilometers