दीर्घवृत्त x2a2 + y2b2 = 1 द्वारा घिरा हुआ क्षेत्रफल किसके बराबर है?

The area bounded by the curve y = |x + 1| and the x-axis between x = -3 and x = 1 is:

The total area bounded by the curves y = x and y = x3 is:

The area bounded by the curves y = 3 - x2 and y = 2x is: