Class 8th : Chapter -7 Algebraic Identities

jmwq  A`TvI  

AiDAwie s`q (bIjgixqk qqsmk)

                                                                                                   

1.       smIkrx qo kI Bwv hY?

  a`uqr:-jykr iksy smwnqw iv`c ie`k jW ie`k qo v`D A`Kr sMiKAwvW hox qW aus nUM smIkrx ikhw jWdw hY[

2.   smwnqw qo kI Bwv hY?

  au`qr:-Aijhw kQn ijs iv`c “=”icMn drswieAw hovy smwnqw khwaNudw hY[

3.        cl sMiKAw qo kI Bwv hY?
au`qr:- A`KrI sMiKAwvW nUM cl sMiKAw ikhw jWdw hY[

4.       Acl sMiKAw qNo kI Bwv hY?
au`qr:- AMk sMiKAwvW nUM Acl sMiKAw ikhw jWdw hY[

5.       bIjgixqk qqsmk qoN kI Bwv hY?
au`qr:- bIjgixqk qqsmk ie`k smwnqw sbMD hY jo swry cl sMiKAwvW leI s`c huMdw hY[

6.   hyT ilKy qqsmk pUry kro?
    (a+b)²  = a² +……+ b²  
    (a-b)² = …..  – 2ab + …..
     a²  - b²  = (a+….) (a-…. )

7.     (a+b+c)²  = a² +b²+…….+…..+2bc+….. pUrw kro?

8.     (a+b)³  = a³ +……+ b³ pUrw kro?

9.     (a-b)³ = a³ - ……  - b³ pUrw kro?

10. guxnKMfn qoN kI Bwv hY? 
au`qr:- sMiKAW nUM do jW do qoN v`D sMiKAw dw guxnPl dy rUp ilKx dI pRikRAw nUM guxnKMfn AwKdy hn[

iqAwr krqw : gurbKS b`sI

mYQ mwstr ssss FMfwrI Kurd