Sir sum means to add but in this one it is written sum but instead of adding it is subtracting - Maths - Indices and Logarithms

Question

Sir sum means to add but in this one it is written sum but instead
of adding it is subtracting pls look to it

Lovina Kansal · Accepted Answer

Dear student
Your question is to subtract 25mn2 from the sum of 14mn2 and -mn2Solution Sum of 14mn2 and -mn2=14mn2+(-mn2)=14mn2-mn2=13mn2Now, subtract 25mn2  from the sum of 14mn2 and -mn2i
e subtract 25mn2  from 13mn2 i
e 13mn2-25mn2=-12mn2
Regards