1. P(2). [1222] = [P2ÇΣ2] [3242] = [P2ÇΔ2]. Σ(aIIb) Δ(cÇd) , 1121Ç3141 = M1. 2 | |
2. `(`2). [5262] = [P2ÇΣ2] [7282] = [P2ÇΔ 2]. Σ(aIIb) Δ(cÇd) `(2), [5161]Ç [7181] = [N1]. N2 |
. 5.4
3. M1 N1 M2 N2. MN=Σ(aIIb)ÇΔ(cÇd) |
. , , .
. l D, , P, Σ (Δ ).
(. 5.23).
1. h f Σ (Δ ).
2. D h1 f2. D1cm1 ^ h1; D2cm2 ^ f2.
. P (mÇl=D) m^h, hÌΣ(Δ), P Σ.
. , . . 5.24 , , , : Q(ΔABC)II P(DM∩DN)ÞABIIDM BCIIDN; [A2B2]II[D2M2] [B2C2]II[D2N2]; [A1B1]II[D1M1] [B1C1]II[D1M1] (. 5.24).
. 5.24.
. D Q, Σ(Δ).
(. 5.24).
1. D DM, . [D1M1]II(A1B1) [D2M2]II(A2B2).
2. D DN, BC. [D1N1]II(B1C1) [D2N2]II(B2C2).
. Ω (DMÇDN = D), Σ (Δ), ABÇBC=B, DMllAB DNllBC, Q Σ .
1. :
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2. : , , , . .
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3. , , .
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4. : . . , .
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