The final product (IV) in the sequence of reactions is :

Find a in this 30-60-90 triangle.

For such questions, we should know about the properties of a right-angled triangle and 30°-60°-90° triangle. The alternate way to solve the above question is by Pythagoras theorem and trigonometric ratios.

Find the value of x.

For such questions, we should know about the properties of a right-angled triangle and 30°-60°-90° triangle. The alternate way to solve the above question is by Pythagoras theorem.

Find the length of u and v in this 30-60-90 triangle.

For such questions, we should know about the properties of a right-angled triangle and 30°-60°-90° triangle. The alternate way to solve the above question is by Pythagoras theorem.

Three coins of unit radius are placed in an equilateral triangle as shown in the following figure The area of the equilateral triangle is

Pith and cortex belongs to -

Which of the following is not the characteristic feature of Cycas :

A random variable x has the following probability distribution:

Determine P(X > 6)

If m and are the mean and variance of the random variable X, whose distribution is given by:

A random variable X has the following distribution

The value of ‘K’ and P(X<3) are respectively equal to

A random variable X has the following probability distribution

then the mean value of X is

If a random variable X has the following probability distribution

then the mean value of X is

If X is a random variable with the following probability distribution

then the variance of X, V(x)=

A random variable X has the probability distribution given below. Its variance is

If the probability distribution of a random variable X is

then k =

If the probability distribution of a random variable X is

then second moment about 0 i.e.,