Question
What is the value of 1/15 + 1/35 + 1/63 + 1/99 + 1/143
?Solution
1/(3×5) + 1/(5×7) + 1/(7×9) + 1/(9×11) + 1/(11×13) ⇒ (total terms)/(smallest term × largest term) ⇒ 5/(3×13) = 5/39 Alternate method: 1/(3×5) + 1/(5×7) + 1/(7×9) + 1/(9×11) + 1/(11×13) = 1/(difference ) {T1-Tlast }= 1/2 {1/3-1/13}=1/2 {10/39}=5/39
What does the following code do?
x = [1, 2, 3]
y = [4, 5, 6]
z = x + y
Binary relationship has how many participating entities?
Which component of RDBMS allows users and applications to interact with the database through SQL queries?
Which circuit configuration has a single path for current flow?
Which type of tree structure is optimized for sequential access and range queries?
Simplify the following Boolean expression using Boolean algebra laws:
F = (A + B) * (A' + C) * (B + C)
What is the main purpose of a digital signature?
Which of the following is a key function of the network layer?
syntax of loops in shell scripting?
Default value of boolean variable in an array
Relevant for Exams:
