The image shows a page from a lined notebook with handwritten mathematical calculations in blue ink. The calculations appear to be solving integration problems. There are at least two distinct problems presented. The first problem, labeled "5)", involves the integral of 3 divided by the square root of (1-x^2) dx. This is followed by intermediate steps showing the simplification to 3 times the integral of 1 divided by the square root of (1-x^2) dx, and finally the result is 3 sin^-1(x) + C. The second problem appears to be an integral of -5 divided by (1+x^2) dx, with intermediate steps leading to -5 times the integral of 1 divided by (1+x^2) dx, and the result -5 tan^-1(x) + C. A third problem, labeled "11", involves the integral of cos(3x) dx. The accompanying steps show a substitution: "let u = 3x", followed by "du/dx = 3" and "du = 3 dx". This indicates the beginning of a u-substitution method for integration. The notebook page is lined, and some lines are slightly wavy. The overall lighting suggests it was taken indoors. The background consists of a textured fabric, possibly a bedspread or blanket, in muted green and beige tones. There is no identifiable location in the city of Gumel, Nigeria, or any people present in the image. The description is limited to the contents of the notebook. in Gumel, Nigeria

Faithie🌸

Jun 11, 2026

Gumel, Nigeria

Short Term

Stake attention in this memory

focused

analytical

diligent

studious

problem-solving

The image shows a page from a lined notebook with handwritten mathematical calculations in blue ink. The calculations appear to be solving integration problems. There are at least two distinct problems presented. The first problem, labeled "5)", involves the integral of 3 divided by the square root of (1-x^2) dx. This is followed by intermediate steps showing the simplification to 3 times the integral of 1 divided by the square root of (1-x^2) dx, and finally the result is 3 sin^-1(x) + C. The second problem appears to be an integral of -5 divided by (1+x^2) dx, with intermediate steps leading to -5 times the integral of 1 divided by (1+x^2) dx, and the result -5 tan^-1(x) + C. A third problem, labeled "11", involves the integral of cos(3x) dx. The accompanying steps show a substitution: "let u = 3x", followed by "du/dx = 3" and "du = 3 dx". This indicates the beginning of a u-substitution method for integration. The notebook page is lined, and some lines are slightly wavy. The overall lighting suggests it was taken indoors. The background consists of a textured fabric, possibly a bedspread or blanket, in muted green and beige tones. There is no identifiable location in the city of Gumel, Nigeria, or any people present in the image. The description is limited to the contents of the notebook.

Symbol

FD003

Volume

13,443

Creator

+$0.33

Revenue

+$0.49

TVL

$27.72

All

transactions