Sir I am a student of 11th standard and opting for JEE preparations can you please kindly tell which book should I refer for 11 standard Jee preparations for physics chemistry and mathematics and sir can you please send the photos so that I can easily by them

What are the differences between similar triangles and congruent triangles?

What are Armstrong numbers?

All real numbers are rational numbers.

A) True

B) False

The L.C.M of the smallest 2 digit composite number and the smallest composite number is:

• (a) 12
• (b) 4
• (c) 20
• (d) 44

Are all natural numbers also whole numbers?