For form dxdy+Py=Q, IF = e∫Pdx.
(A) P=3⇒ IF =e3x (IV).
(B) dxdy+xy=3x, IF =x (III).
(C) dxdy−xy=3x, IF =x1 (I).
(D) P=−1⇒ IF =e−x (II).
The area enclosed between y2=4x, x=1, x=4 in first quadrant is :
Held on 30 May 2023 · Verified 13 Jul 2026.
328 sq. unit
227 sq. unit
225 sq. unit
527 sq. unit
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