NDA2013MathematicsBasics of MathematicsActual
What is the positive square root of 7+4 3 ?
Options
- A3 -1
- B3 +1
- C3 -2
- D3 +2
Correct answer
D. 3 +2
Step-by-step solution
Let aligned P ^2 & =7+4 3 & =(2)^2+( 3 )^2+2 2 3 & =(2+ 3 )^2 aligned Hence, positive square root P=( 3 +2)