If `a<0, b>0,` then `sqrta. sqrtb` is equal to :

If a 0, then sqrta. sqrtb is equal to :

If a>0,b>0 then sqrt(-a) . sqrtb is equal to

(sqrta + sqrtb)^2 = ?

If sqrt(ab) be an irrational number then sqrta+sqrtb is also irrational number.True or False

sqrt a^-1b. sqrtb^-1c. sqrtc^-1 a is equal to

Prove that sqrta+ sqrtb is irrational, where a, b are primes.

If (x+10)^50+(x−10)^50=a_0+a_1 x+a_2x^2+........a_50x^2+...........+a_50x^50 then the value of a2/a0 is equal to (A) 12.25 (B) 12.75 (C) 11.75 (D) 11.25

(sqrta+b)(sqrta-b) =

(sqrta+sqrtb)(sqrta -sqrtb) =__

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