Question
Find the value of cos 15° × cos 75° + sin 15° × sin
75°:Solution
Using the identity cos(A - B) = cos A cos B + sin A sin B, cos(75° - 15°) = cos 60° = 1/2. Correct option: c
Under the Constitution of India, the safety, welfare and health of workers employed in mines are the concern of ___.
Assertion (A): In the organizational structure of the modern companies, the trend is towards wider span of control.
Reason (R): Narrow span of ...
Consider the following statements:
(1) Article 21 talks about the protection of life and personal liberty.
(2) Article 21 is a part of t...
Consider the following statements :
1. Falkland Islands are situated in Pacific Ocean.
2. Red Sea separates Sudan from Egypt.
Out of the given words, three are similar in a certain manner. However, one option is NOT like the other three. Select the option which is different fro...
A convex mirror used as a rear-view mirror of a car has a focal length of 2 m. If a bus is located at a distance of 3 m from the mirror, where will its ...
Which one of the following concerns prepares Receipts and Payments Account?
Which of the following statements are correct regarding “Mid-day meal scheme”?
I. It is implemented by “The Minist...
After which constitutional amendment the Santali Language was added in the 8th Schedule as official language?
In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Which numbers should repla...
