Randhir K

Chennai, TN, India

Math Expert



My expertise are in teaching mathematics to secondary school level students preparing for IITJEE in India. IITJEE is toughest entrance examination in India at secondary school level and students clearing this entrance test are recognized world wide for their prowess in Physics, Chemistry, and Mathematics. Teaching these students need a teacher to have a great degree of in-depth knowledge of subject. Apart from this I am pretty much comfortable teaching quantitative section to GRE and GMAT test prep students.


B.Tech ( IT )

Subjects of Expertise

SAT Math, ACT Math, GRE Math, GMAT Math, Pre-Algebra, Algebra 1, Algebra 2, Geometry, Trigonometry, Calculus, Pre-Calculus

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2 Tutorials by Randhir K


Differentiation of a function y = f(x)^g(x)

Number of zeros at the end of n!

n! is defined as product of 1st n natural numbers. n! = n*(n-1)*(n-2)*….3*2*1, n must be natural (whole) number. Eg. 4!= 4*3*2*1 = 24 5!= 5*4*3*2*1 = 120 and so on. Note : 0! = 1 (explanation lies in theory of permutation & combination)