to find a square root of any no. in 5 seconds

hello friends,
you thinks how can we find a square root of any no. in just 5 seconds but yes we can do this we found the trick to solve this

so let's begin
for finding square root in 5 second we have to learn the squares of 1 to 10by heart

here is a table of squares:-
we have to learn the squares by heart

lets take a example 9025
as you knows the square root of any 4 digit no. is 2 digits

so there are two no. we have to find

step 1
lets make a pair of two two digits
the first pair is 90 and second pair is 25

then see in which interval the 90 comes this will give you tenth place now here the 90is placed between interval of 9th square and 10th square here we have to choose a lowest no here i.e 9
so the 10th doit no is 9

step 2
after finding the tenth digit place no. we have to find the unit place no.
to find the no lets take ours another pair i.e 25
here on the unit place of this pair is 5 so lets see in which unit place of square the 5 is the 5 is in unit place of 5square so our unit place no. is 5
i.e the square root of no.9025 is 95

but if the unit place no is not 5 then we have to find the no. similler to the 1st step.

at first time you will think that this process will take more than 5 seconds
but as you practice it it will become easier and now you can find the square root of any no.

thank you,
Somesh

Comments

Post a Comment

Popular posts from this blog

mathematics trignomatery simple way to remember formulas

Image
if you are unable to remember trignomatery formulas then you are on right place which helps you to remember formulas table formula table :- here is an simple trick for you 1st for obtaining sin angle measurements for 0 ,30,45,60,90degrees you have to write 0,1,2,3,4 respectively then devide each term by 4 and take a square root of each then you will able to fin the values of all angels of sin 2) to find a cos angles you have to do invert the sin angles as sin 90 degrees to cos 0 degree 3)for tan   θ  =sin  θ/cos     θ by putting the angle that you want to find you will able to obtain the values of tan   θ 4)for cot   θ=1/tan   θ simillary we can put the angle and find the values of cot  5)for sec   θ=1/cos   θ similarly as above 6)for cosec    θ=1/sin   θ yeah now you had found all the values of table congratulations formulas that you have to always remember  sin=1/cosec cos=1/sec tan=1/c...
Read more

11th sets general info

Set:-well defined collection of objectsis called as sets signs for sets:- 1)U=universal set 2)∩=intersection set above set signs will used to represent sets. we can define any well defined collection with set for representation of sets there are 3 methods:- 1)venn digram 2)set builder form 3)roster form venn digram is easier method which is developed by scientist venn so they named it as a venn digram method set builder form eg A={x:xis a group of boys in a class}
Read more