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Analytic geometry and calculus (1917)
Woods, Frederick S. (Frederick Shenstone), 1864-, Bailey, Frederick H. (Frederick Harold), 1865- · Boston, New York [etc.] Ginn and Company · leaf 404
Hence area ABCD and vol O-ABCD ■■ Similarly, vol 0~EFGII= l(r+ A/-)3A0[cos<f>-cos(<f> + A<£)]. rA6 [r cos (f) — r cos ((f) + A$)]I r3Ad [cos <f> - cos ((f) + A(£)]. 388 MULTIPLE INTEGRALS Therefore vol ABCDEFGH = J [(/• + Ar)3 - r3] A0 [cos <f> -eos(<£+A<£)].i [(r +…Geometry, Analytic · Calculus
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