x<2
x≤2
x=2
x>−2
Correct answer is B
f:x→√4−2x defined on the set of real numbers, R, which has range from (−∞,∞) but because of the root sign, it is defined from [0,∞).
This is because the root of numbers only has real number values from 0 and upwards.
√4−2x≥0⟹4−2x≥0
−2x≥−4;x≤2
Given that sinx=513 and siny=817, where x and y are acute, find \(...
Given that 8x+mx2−3x−4≡5x+1+3x−4...
A and B are two independent events such that P(A)=25 and \(P(A \cap B) = \frac{1}{15}...
If T=(−2−538), find T−1, the inverse of T...
If →OX=(−76) and \(\overrightarrow{OY} = \begi...
Find the equation of the line that is perpendicular to 2y+5x−6=0 and bisects the line join...