# 5 Different Courses in Medical Field Other Than MBBS [Updated]

Sir Arthur Conan Doyle was a medical doctor who turned author. While one does wonder why people change career tracks that late, it is also prudent to look at options when you are still in the last year of high school.

# Introducing HashLearn’s Online Test Series (OTS) for JEE Main 2019

The Test Series starts with 10 Live Mini JEEs followed by 10 Live Model JEEs. So, what are Mini JEEs and Model JEEs?

## Mini JEEs and Model JEEs?

Mini JEEs are topic-focused while the Model JEEs are full-syllabus mock exams.

# 7 Courses other than Engineering (B.E. / B.Tech) for PCM Students

Many students who’ve taken Physics, Chemistry, Mathematics (PCM) combination in class 12 perceive Engineering as the only choice towards a prosperous career.

The thought, “If not Engineering, then what?” has been instilled in the minds of many of our peers, this may include you too.

# Descartes’ Rule of Signs explained by an IITian

This explanation of Descartes’ Rule of Signs was submitted by Ayush, a HashLearn tutor from IIT, Dhanbad.

Consider a polynomial equation p(x)=0 (descending powers of x)
i) Number of positive roots of the equation p(x)=0 cannot exceed the number of changes of sign in p(x).…

# A Guide to Studying Chemistry

Chemistry can be an intimidating subject. The entire syllabus is roughly divided into three parts – organic chemistry, inorganic chemistry, and physical chemistry. Studying each section seems to be a daunting task as it never seems to end. However, chemistry is in fact a very scoring subject.…

# Study Tips: Differentiation of an Infinite Series

This tip on calculus was contributed by one of our top tutors, Shashwat.

What you will learn from this tip:
The trick to differentiate an infinite series.

Want more tips like this? Request a session on HashLearn now (it’s free!)

Consider the following question:
A function y is defined as

Find at x = 0.…

# Study Tips: Finding the Roots of Unity

This tip on roots of an equation, and complex numbers was contributed by one of our top tutors, Sudheer Naidu.

What you will learn from this tip:
• An understanding of the relation between complex numbers and the roots of unity.
• The trick to calculate the nth roots of unity.

# Formulae Everywhere – How to Remember Them All

Formulae are like difficult boss fights in video games where you are outnumbered by enemies, except they are much greater in number. It’s a well-known fact that all you JEE and NEET aspirants have to learn a lot of equations and have them on the tip of your tongue.…

# 2017 CBSE Date Sheet For Science Students

The worst thing that can happen to any student is coming to the exam hall only to realize you’ve prepared for the wrong subject.

To prevent this from happening to you, we’ve created a simple version of the CBSE exam schedule for Class 12 Science students.…