`(a + sqrt b)(a-sqrt b) = a^2 - b`

(a+c sqrt(b))(2+y sqrt(b))

If a and b are positive natural numbers (sqrt(a)+sqrt(b))(sqrt(a)-sqrt(b))=a-b

If cot 52^(@) = b, tan 38^(@) = ? A. sqrt(b) B. sqrt(b)//2 C . - b D. b

If c!=0 and the equation p/(2x)=a/(x+c)+b/(x-c) has two equal roots,then p can be (sqrt(a)-sqrt(b))^(2) b.(sqrt(a)+sqrt(b))^(2) c.a+b d.a-b

Evaluate : ( -b/a ) / sqrt( b/a ) + sqrt(b)/ sqrt(a ) = ?

If a 0, then sqrt(a)sqrt(b) is equal to (a) -sqrt(|a|b(b))sqrt(|a|bi(c))sqrt(|a|b)(d) none of these

If a>b>0 are two real numbers, then the value of sqrt(a b+(a-b)sqrt(a b+(a-b)sqrt(a b+(a-b)sqrt(a b+.....)))) is