Question

(x)=⎧⎩⎨⎪⎪0, if x<0Ax(d−x), if 0≤x≤d0, if x>d

What is the value of A?

(1) 2/L−−−√

(2) 1

(3) 30−−√L−5/2

(4) 15−−√L−3/5

Answer 1

30 - - \sqrt{l - 5 \div 2} }