Question

A survey was conducted among the students in Goa and thequestion asked was "Which hobby do you enjoy the most?" Theresults are shown in the pie chart below. Write a summary of theresults in two paragraphs adding your own comments. A- Music.B- Reading.C- Gardening.D-Art and Craft.​

Answer 1

Explanation:

We know that, √5 = 2.2360679…

Here, 2.2360679…is non-terminating and non-recurring.

Now, substituting the value of √5 in 2 –√5, we get,

2-√5 = 2-2.2360679… = -0.2360679

Since the number, – 0.2360679…, is non-terminating non-recurring, 2 –√5 is an irrational number.

(ii) (3 +√23)- √23

Solution:

(3 +√23) –√23 = 3+√23–√23

= 3

= 3/1