Answer:
b is preferred by everyone
about 25%like A
F(3) = 2(3)^2 - 3(3) + 1 = 18 - 9 + 1 = 10
f(2) = 2(2)^2 - 3(2) + 1 = 8 - 6 = 2
Then f(3) - f(2) = 10 - 2 = 8 (answer)
False.
Only log(x^2)=2log(x)
For example, let x=10
(log(10))^2=1^2=1
yet 2log(10)=2*1=2
Answer:
rational
Step-by-step explanation:
Any number that can be written with a finite number of digits is rational. The given number is rational. (It has 5 digits.)
__
Any repeating decimal is rational.
If this were -9.2222..., it would be -9 2/9 = -83/9, also a rational number.
_____
A number is irrational if it cannot be represented exactly as a decimal or repeating decimal. That is, its decimal fraction part continues forever without repeating.
Answer:
x = 0, π/4, π, 7π/4
Step-by-step explanation:
sin(2x) = √2 sin x
Use double angle formula.
2 sin x cos x = √2 sin x
Move everything to one side.
2 sin x cos x − √2 sin x = 0
Factor.
sin x (2 cos x − √2) = 0
Solve.
sin x = 0, cos x = ½√2
x = 0, π/4, π, 7π/4
