X^2 = 3x + 5
x^2 - 3x - 5 = 0
a(alpha) and b(beta are roots
(x - a)(x - b) = 0
x^2 - (a+b)x + ab = 0
compare coefficients
a+b = 3
ab = -5
solving
(1/a^2 + 1/b^2)
= (a^2 + b^2)/(ab)^2
= (a^2 + 2ab + b^2 - 2ab)/(ab)^2
= [(a+b)^2 - 2ab]/(ab)^2
= [(3)^2 - 2(-5)]/(-5)^2 =...
prove
a^4 = 57a + 70
let x=a,
a^2 = 3a + 5
(a^2)^2 = (3a + 5)^2
a^4 = 9a^2 + 30a + 25
a^4 = 9(3a + 5) + 30a + 25
a^4 = 57a + 70
C
4/8 equals 1/2 the rest are 1/2 but 12/36 is 1/3
Riku And Charlie Have Precise Answers.
The Temp. Is -18 Degrees And...
-13 + (-5) = -18
-13 - 5 = -18
Answer:
You can even correct mistakes when someone is protesting that whatever it is, is a good deal for price. If your ordering something and they demand more money you correct them because you can use math in your life. You can have more availability to jobs, it will be easier to find a job as an engineer. You could be an engineer or an administrator. You can find a career that includes mathematics. You can be a Data or Research Analyst or a Computer Programmer. And you can earn tons. Just like NASA the most famous woman used maths to make a rocket that could go in space. It develops our reasoning, helps us to have analytical thinking, quickens our mind, generates practicality and also its use can be applied in the day to day. This is what it should include.
0 has a reference angle of 30° and is in quadrant one or two
