Question

50 maths formulas wasy easy on 7 standard

Answer 1

search on google 

you will get best answer 

:)

Answer 2

Hey dear!!


Here is yr answer
.....................................................................


=> a^m × b^m = (ab) ^m

=> a^n × a^m =a^m+n

=> a^-n = 1/a^-n

=> sum of all obs. / no. of obs.

=> (n+1)/2

=> (n/2)


I don't know more....of 7th standard!!


Bt, u can search in yr text book.... after every chapter... in WHAT WE HAVE DISCUSSED!!


Hope it hlpz....