Question
In ∆ABC, AB = 5cm, BC = 10cm, and AC = 13cm then find
out the value of cos A.Solution
From the Cosine rule, we get. BC2 = AC2 + AB2 - 2AC.AB.cos A 100=25+169-2×5×13×Cos A 130CosA=194-100=94 cos A = 94/130 =47/65
Which among the following can be called an electronic check ?
Which operating system guarantees real-time processing within strict timing constraints?
Which of the following computers is used for large-scale real-time processing?
Which memory organization technique stores data in rows and columns?
A universal product code is read by what type of scanner:
Communication controls for the entire computer system?
A group of 8 bits is known as a ________.
In Microsoft Excel, which bar allows users to input formulas and data directly into cells?
Shortcut to insert a new worksheet in Excel is?
What is the purpose of a fuser unit in a laser printer?
Relevant for Exams:
