Question

2 3 10 11 12 13 14 15 Question 6 A solid is formed by revolving the enclosed region about axis as shown in the graph below. the x y=3 2- y=7-X? 1 -2 -1 1 2 3 -17 For questions 1 and 2, select your answer from the choices below. Write only the letter a, b, c, or d in the box provided for. Lal 7-x2 b) 3 c) x² – 4 d) 4 – x² MacBook Pro

Answer 1

(0,7), y about the x-axis Curves y = 7-x2 Ra) and line g=3 -3 0,3) outen radius=7x² Inner raclius = 3 =7-01² 12180 (-2,0) o (2,08 a = -2 b=2 a = π 2 - T s 2 2 By disk Method V = π (Rx)²- raj²dx Si [67-73?-(33*]da 149+24-143-9]da [40 +x+-1939dx + [40x + gas - 194?] (2)} (40X-2 [80 +34 - 982.780 **-4123 VET 2 V - T -2 3 +(-2ys? 14 (2) 4082 + 6 (239-14 5 = T Ś 3 T Cubic unit = 98113 T cubic unit V. 30 8:29 R(x)=La D Owen Radius R(x)= Inner Radius 1(x)=[b] Volume of solid = 1308.2 unit

Sises da=2 ç ise? dx - slip ) S a (esa e) - sa 2 e e -I 59 = 2+ esa. = 3 taking en sa = ln 3 a = ln 3 = 4x 1.0986 a=0.22 02.197 = 0.22