Help to solve with correct answer's. Mention A,B,C or T/F or the numbered answer.

Question 1 The substitution of a = sin 0 in the integrand of V1 - da results in A) 1/2 sin- 0 cos 0 do B) .1/2 sin2 0 do C) . 7 /6 sin2 0 do -7 /3 D) sin2 0 de E 1/2 cos2 0 sin 0 OA O B OC OD OE\fQuestion 3 The area of the region in the first quadrant under the curve y = 1 bounded on the left by x = , and on the right by x = 1 is V I - 12 A) Do B) T C) 1/2 D) 7/3 E) None of these O A O B OC OD OE\fQuestion 5 The volume of a solid generated by revolving the region enclosed by the curve y = 3.x2 and the line y = 6x about the x-axis is represented by A ) * ( Gx - 32 2 )2 da B) T (6x - 3x2)2 dx C) (91 - 3617 ) da D) TT (3612 - 914) dx OA O B OC OD OE