Evaluate `(sqrta+sqrtb)(sqrta-sqrtb)`

(a + b)(sqrta + sqrtb ) (sqrta - sqrtb)= "________"

(sqrta + sqrtb)^2 = ?

If (sqrta+sqrtb)=17 and (sqrta-sqrtb)=1 , then the value of sqrtab is :

If a,b,c are in AP, show that 1/((sqrtb+sqrtc)),1/((sqrtc+sqrta)),1/((sqrta+sqrtb)) are in AP.

If sqrt(9+sqrt48-sqrt32-sqrt24)=sqrta-sqrtb+2 ,where a,b inN , then find the value of a + b.

If a=(sqrt5+sqrt10)/(sqrt10-sqrt5) and b=(sqrt10-sqrt5)/(sqrt10+sqrt5) show that sqrta-sqrtb-2sqrt(ab)=0

If sqrt(10-2 sqrt21)+ sqrt(8+2 sqrt15)= sqrta+ sqrt b , where a and b are positive integers, then the value of sqrt(ab) is closest to : यदि sqrt(10-2 sqrt21)+ sqrt(8+2 sqrt15)= sqrta+ sqrt b है, जहाँ a और b धनात्मक पूर्णाक है, तो sqrt(ab) का मान ( लगभग ) ज्ञात करें |