Question
If sin B = 1/2 then 3cos B – 4 cos3 B =
- 0
- 1/2
The correct answer is: 0
To find the value of the given expression
Hence option 4 is correct
Related Questions to study
A minutes hand of a table clock is 3cm long. How far does its tip move in 20 minutes
A minutes hand of a table clock is 3cm long. How far does its tip move in 20 minutes
If 
Hence option 3 is correct
If
Hence option 3 is correct
If 
Hence option 2 is correct
If
Hence option 2 is correct
The appropriate formula that can be used to find the value of 
Hence option 3 is correct
The appropriate formula that can be used to find the value of
Hence option 3 is correct
Divide 
Hence option 1 is correct
Divide
Hence option 1 is correct
Find the missing term in 
Hence option 2 is correct
Find the missing term in
Hence option 2 is correct
Find the probability of getting a number less than 5 in a single throw of a die
Hence option 2 is correct
Find the probability of getting a number less than 5 in a single throw of a die
Hence option 2 is correct
In the spinner shown, pointer can land on any of three parts of the same size. So there are three outcomes. What part of the whole is coloured?
So here we used the concept of fractions to understand the question. The numerical numbers that make up a fraction of the whole are called fractions. A whole can be a single item or a collection of items. When anything or a number is divided into equal parts, each piece represents a portion of the total. So the fraction in this question is 1/3.
In the spinner shown, pointer can land on any of three parts of the same size. So there are three outcomes. What part of the whole is coloured?
So here we used the concept of fractions to understand the question. The numerical numbers that make up a fraction of the whole are called fractions. A whole can be a single item or a collection of items. When anything or a number is divided into equal parts, each piece represents a portion of the total. So the fraction in this question is 1/3.
A box contains 4 packs of chocolates. Anusha picks out a pack at random. What is the probability that she picks
A) Perk?
B) Kitkat?
Here we used the concept of probability to find the answer using events. A set of results from an experiment might be referred to as a probability event. In other words, a probability definition of an event is the subset of the relevant sample space. So the probabilities are 
.
A box contains 4 packs of chocolates. Anusha picks out a pack at random. What is the probability that she picks
A) Perk?
B) Kitkat?
Here we used the concept of probability to find the answer using events. A set of results from an experiment might be referred to as a probability event. In other words, a probability definition of an event is the subset of the relevant sample space. So the probabilities are .
In which class interval of wages there are less number of workers?
Hence option 4 is correct
In which class interval of wages there are less number of workers?
Hence option 4 is correct
What is the size of the class?
Hence option 1 is correct
What is the size of the class?
Hence option 1 is correct
What is the lowest value of rainfall?
Hence option 3 is corrrect
What is the lowest value of rainfall?
Hence option 3 is corrrect
In a Parallelogram the diagonals intersect at O. If 
then AC is
Hence option 4 is correct
In a Parallelogram the diagonals intersect at O. If then AC is
Hence option 4 is correct
