Question
If sin 2A = cos (3A - 60o) , then find the
value of sec 2A.Solution
sin 2A = cos (3A - 60)
When sin P = cos Q, then P + Q = 90o
2A + 3A - 60o = 90o
Or, 5A = 150o
Or, 'A' = 30o
Therefore, sec (2 X 30o) = sec 60o = 2
The Newton-Raphson method is an iterative technique primarily used for:
Which type of data can be ordered, but the differences between values are not meaningful (e.g., satisfaction ratings: "Good," "Better," "Best")?
The "standard deviation" is the square root of which other statistical measure?
In numerical computing, what type of error occurs when a continuous function is approximated by a discrete sum or a finite number of terms?
Which numerical method approximates the definite integral of a function by dividing the area under the curve into trapezoids?
What does a p-value less than a significance level (e.g., 0.05) typically indicate in hypothesis testing?
Which statistical measure quantifies the average squared deviation of each data point from the mean?