Eduprobe
Question:
If the area (in sq. units) bounded by the parabola y²=4λx and the line y=λx, λ>0, is 19, then λ is equal to
24
48
43
26
Solution:
Correct option is A. 24
Area = 19 = ∫₀⁴⁄λ(√(4λx) - λx)dx ⇒ λ = 24.