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The Coordinator of an International Virtual Conference has planned six guest lectures on different areas-Cryptography, Fluid Dynamics, Big Data Analysis, Wavelet Theory, Differential Equations and Linear Algebra-to be organised only one on each day from Monday to Sunday.  Wavelet Theory should be organised immediately after Differential Equations.  Big Data Analysis should be organised on Wednesday and should not be followed by Linear Algebra.  Fluid Dynamics should be organised on Friday and there should be a gap of two days between Cryptography and Linear Algebra.  One day there will be no lecture (Saturday is not that day), and just before that day Linear Algebra will be organised. How many lectures are organised between Big Data Analysis and Wavelet Theory? 
"Algebraic thinking involves generalisation and symbolisation". Which of the following explains the meaning of the given statement? (a) Algebraic equations are solved by using mathematical symbols hence these symbols should be memorized (b) Algebra involves the process of creating generalizations from arithmetic (c) Algebra involves representing patterns and regularities in our world (d) Algebra is more abstract and symbolic hence cannot be taught through concrete experiences Choose the correct option.
The figure shows a shape ABC and its mirror image A1B1C1 across the horizontal axis (X-axis). The coordinate transformation matrix that maps ABC to A1B1C1 is
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Consider the following three relations in a relational database. Employee(eId, Name), Brand(bId, bName), Own(eId, bId) Which of the following relational algebra expressions return the set of eIds who own all the brands? 
Consider the relational schema given below, where eId of the relation dependent is a foreign key referring to empId of the relation employee. Assume that every employee has at least one associated dependent in the dependent relation. Employee (empId, empName, empAge) Dependent(depId, eId, depName, depAge) Consider the following relational algebra query: ΠempId(employee)-ΠempId (employee⋈(empId = eID)∧(empAge ≤ depAge)dependent) The above query evaluates to the set of empIds of employees whose age is greater than that of
Given the relations employee (name, salary, deptno) and department (deptno, deptname, address) Which of the following queries cannot be expressed using the basic relational algebra operations (U, -, x, π, σ, p)?  
In SQL, which of the following is/are the basic operations in relational algebra?
Arrange the given words in the sequence in which they occur in the dictionary. 1. Basic industry 2. Basic pay 3. Basic rate 4. Basic plumage 5. Basic price
Who is one is not unary operation in relational algebra?
Which of the following is a fundamental operation in relational algebra?