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The size of signature, left thumb impression and hand-written declaration Image for IBPS RRB application form is given below:SignatureThe applicant has to sign on white paper with Black Ink penDimensions 140 x 60 pixels (preferred)Size of file should be between 10kb – 20kbEnsure that the size of the scanned image is not more than 20kb Left Thumb ImpressionThe applicant has to put his left thumb impression on a white paper with black or blue inkFile type: jpg / jpegDimensions: 240 x 240 pixels in 200 DPI (Preferred for required quality) i.e 3 cm * 3 cm (Width * Height)File Size: 20 KB – 50 KBHandwritten DeclarationThe applicant has to write the declaration in English only clearly on a white paper with black ink File type: jpg / jpegDimensions: 800 x 400 pixels in 200 DPI (Preferred for required quality) i.e 10 cm * 5 cm (Width * Height)File Size: 50 KB -100 KB

BCA (Bachelor of Computer Applications) is a degree programme that focuses on computer Science and applications. As such, the mathematics topics covered in BCA are generally related to computer Science and its applications. Some of the common topics of mathematics that may be covered in BCA include:
Discrete Mathematics: This includes topics such as Sets relations, functions, propositional logic, predicate logic, combinatorics, graph theory, and algorithm analysis. Calculus: This includes topics such as Differentiation integration, limits, continuity, and applications of calculus in computer Science. Linear Algebra This includes topics such as matrices, Determinants systems of linear equations, eigenvalues, eigenvectors, and applications of linear Algebra in computer Science. Probability and Statistics This includes topics such as Probability theory, random variables, Probability distributions, hypothesis testing, estimation, regression analysis, and applications of Probability and Statistics in computer Science. Numerical Methods: This includes topics such as numerical algorithms, interpolation, approximation, numerical integration, numerical solutions of Differential Equations and applications of numerical methods in computer Science. The specific topics covered in a BCA mathematics course may vary depending on the university or college offering the programme.