Which of the following expressions corresponds to simple harmonic motion along a straight line, where x is the displacement and a,b,c are positive constants ?

Which of the following expressions corresponds to simple harmonic moti

1.	Which of the following expressions corresponds to simple harmonic motion along a straight line, where x is the displacement and a,b,c are positive constants ?
Answer» `BX^(2)` `a+bx-cx^(2)` `-bx^(2)` `a-bx+cx^(2)` ANSWER :C