Q25 of 48 Page 84

Prove the following with the help of identities:


=

Taking L.H.S we get,



Taking L.C.M wee get,


⇒


As we know,


(a + b)2 + (a – b)2 = a2 + b2 + 2.a.b + a2 + b2 – 2.a.b


⇒ (a + b)2 + (a – b)2 = 2(a2 + b2)


⇒


⇒ =


And,



⇒


⇒


Hence, proved.


More from this chapter

All 48 →
23

Prove the following with the help of identities:

 24

Prove the following with the help of identities:


 26

Prove the following with the help of identities:

 27

Prove the following with the help of identities: