Number System class 9| If p=(2−√5​ )/(2+√5​ ) and q=(2+√5​ )/(2−√5​ ), Find the values of p + q.

Number System Paper Q | If p=(2−√5​ )/(2+√5​ ) and q=(2+√5​ )/(2−√5​ ), Find the values of p + q. If a=(2-√5)/(2+√5) and b=(2+√5)/(2-√5) Find a^2-b^2,if a=2-root 5/2+root 5,b=2+root 5/2-root 5,find a^2-b^2,Math Army Class 9 Maths Number Systems Rationalisation By Algebraic Identities: 1 . (a+b)² + (a-b)² = 2(a²+b²) 2. (a+b)(a-b) = a² - b² 3. (a+b)² - (a-b)² = 4ab #maths #numbersystem #realnumbers #important